2.5.2 Release

Update bStats, optimize it a bit... and fix it forgetting some config values, I guess 🤔

.gitignore

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+.metadata
+dependencies/
+bin/
+tmp/
+*.tmp
+*.bak
+*.swp
+*~.nib
+local.properties
+.settings/
+.loadpath
+.recommenders
+.project
+.externalToolBuilders/
+*.launch
+*.pydevproject
+*.jar
+.cproject
+.classpath
+.factorypath
+.buildpath
+.target
+.tern-project
+.texlipse
+.springBeans
+.recommenders/
+.cache-main
+.scala_dependencies
+.worksheet
+*.DS_Store
+.AppleDouble
+.LSOverride
+Icon
+._*
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+*.class
+*.log
+*.ctxt
+.mtj.tmp/
+*.war
+*.ear
+*.zip
+*.tar.gz
+*.rar
+hs_err_pid*
+*.iml
+.idea
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.xml
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/gradle.xml
+.idea/**/mongoSettings.xml
+*.iws
+/out/
+.idea_modules/
+atlassian-ide-plugin.xml
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+target/
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+pom.xml.next
+release.properties
+dependency-reduced-pom.xml
+buildNumber.properties
+.mvn/timing.properties
+!/.mvn/wrapper/maven-wrapper.jar
+Thumbs.db
+ehthumbs.db
+ehthumbs_vista.db
+Desktop.ini
+$RECYCLE.BIN/
+*.cab
+*.msi
+*.msm
+*.msp
+*.lnk

ISSUE_TEMPLATE.md

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+## Issue
+Include here how the problem occured and how it's reproduceable.
+If present, also paste the entire error message from the console, preferably via a https://hastebin.com/ link.
+
+## Necessary server information
+**Running on**: <BungeeCord/Bukkit>
+
+**Maintenance version**: <>
+
+## Other information
+**Other motd changing plugins**: <>
+
+**ProtocolLib version**: <>

LICENSE.txt

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+GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
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+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

Maintenance-API/pom.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <artifactId>maintenance-base</artifactId>
+        <groupId>eu.kennytv</groupId>
+        <version>2.5.2</version>
+    </parent>
+
+    <artifactId>maintenance-api</artifactId>
+    <name>Maintenance-API</name>
+
+    <dependencies>
+        <dependency>
+            <groupId>net.md-5</groupId>
+            <artifactId>bungeecord-api</artifactId>
+            <version>1.13-SNAPSHOT</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.spigotmc</groupId>
+            <artifactId>spigot-api</artifactId>
+            <version>1.13.2-R0.1-SNAPSHOT</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

Maintenance-API/src/main/java/eu/kennytv/maintenance/api/IMaintenance.java

@@ -0,0 +1,40 @@
+package eu.kennytv.maintenance.api;
+
+/**
+ * @author KennyTV
+ * @since 2.1
+ */
+public interface IMaintenance {
+
+    /**
+     * Enables/disables maintenance mode.
+     * If enabled, all non-permitted players will be kicked.
+     * <p>
+     * If using the BungeeCord version and MySQL is enabled,
+     * it will also be written into the database.
+     * </p>
+     *
+     * @param maintenance true to enable, false to disable maintenance mode
+     */
+    void setMaintenance(boolean maintenance);
+
+    /**
+     * @return true if maintenance is currently enabled
+     */
+    boolean isMaintenance();
+
+    /**
+     * @return true if a start- or endtimer task is currently running
+     */
+    boolean isTaskRunning();
+
+    /**
+     * @return version of the plugin
+     */
+    String getVersion();
+
+    /**
+     * @return {@link ISettings} for options regarding configuration files
+     */
+    ISettings getSettings();
+}

Maintenance-API/src/main/java/eu/kennytv/maintenance/api/IMaintenanceBase.java

@@ -0,0 +1,15 @@
+package eu.kennytv.maintenance.api;
+
+/**
+ * @author KennyTV
+ * @since 2.2.2
+ */
+public interface IMaintenanceBase {
+
+    /**
+     * Returns API instance of IMaintenance.
+     *
+     * @return {@link IMaintenance} instance
+     */
+    IMaintenance getApi();
+}

Maintenance-API/src/main/java/eu/kennytv/maintenance/api/ISettings.java

@@ -0,0 +1,70 @@
+package eu.kennytv.maintenance.api;
+
+import java.util.Map;
+import java.util.UUID;
+
+/**
+ * @author KennyTV
+ * @since 2.1
+ */
+public interface ISettings {
+
+    /**
+     * Note that the value might need a few seconds to update, if you're on BungeeCord with MySQL enabled
+     *
+     * @return true if maintenance is currently enabled
+     */
+    boolean isMaintenance();
+
+    /**
+     * @return true if "send-join-notification" is set to true in the config
+     */
+    boolean isJoinNotifications();
+
+    /**
+     * @return true if "custom-maintenance-icon" is set to true in the config
+     */
+    boolean hasCustomIcon();
+
+    /**
+     * @return map of uuids of whitelisted players with their given names
+     */
+    Map<UUID, String> getWhitelistedPlayers();
+
+    /**
+     * Removes a player from the maintenance whitelist.
+     *
+     * @param uuid uuid of the player to remove
+     * @return true if removing the player was successful
+     */
+    boolean removeWhitelistedPlayer(UUID uuid);
+
+    /**
+     * Removes a player from the maintenance whitelist.
+     *
+     * @param name name of the player to remove with original lower-/uppercase letters
+     * @return true if removing the player was successful
+     * @deprecated if a player changes their name, the list will still contain the old one
+     * @see #removeWhitelistedPlayer(UUID)
+     */
+    @Deprecated
+    boolean removeWhitelistedPlayer(String name);
+
+    /**
+     * Adds a player to the maintenance whitelist.
+     *
+     * @param uuid uuid of the player to add
+     * @param name of the player to add
+     * @return true if adding the player was successful
+     */
+    boolean addWhitelistedPlayer(UUID uuid, String name);
+
+    /**
+     * Reloads the maintenance-icon.png image from the server folder.
+     *
+     * @return true if loading the image was successful
+     */
+    boolean reloadMaintenanceIcon();
+
+    boolean debugEnabled();
+}

Maintenance-API/src/main/java/eu/kennytv/maintenance/api/bungee/IMaintenanceBungee.java

@@ -0,0 +1,30 @@
+package eu.kennytv.maintenance.api.bungee;
+
+import eu.kennytv.maintenance.api.IMaintenance;
+import net.md_5.bungee.api.config.ServerInfo;
+
+/**
+ * @author KennyTV
+ * @since 2.5
+ */
+public interface IMaintenanceBungee extends IMaintenance {
+
+    /**
+     * Enables/disables maintenance mode on a proxied server.
+     * If enabled, all non-permitted players will be kicked.
+     * If MySQL is enabled, it will also be written into the database.
+     *
+     * @param maintenance true to enable, false to disable maintenance mode
+     */
+    boolean setMaintenanceToServer(ServerInfo server, boolean maintenance);
+
+    /**
+     * @return true if maintenance is currently enabled on the proxied server
+     */
+    boolean isMaintenance(ServerInfo server);
+
+    /**
+     * @return true if a start- or endtimer task is currently running regarding the proxied server
+     */
+    boolean isServerTaskRunning(ServerInfo server);
+}

Maintenance-API/src/main/java/eu/kennytv/maintenance/api/bungee/MaintenanceBungeeAPI.java

@@ -0,0 +1,29 @@
+package eu.kennytv.maintenance.api.bungee;
+
+import eu.kennytv.maintenance.api.IMaintenanceBase;
+import net.md_5.bungee.api.ProxyServer;
+import net.md_5.bungee.api.plugin.Plugin;
+
+/**
+ * Utility class to get the {@link IMaintenanceBungee} instance for the BungeeCord version of the plugin.
+ * <p>
+ * Only access this class if you're running the plugin on a BungeeCord server!
+ * </p>
+ *
+ * @author KennyTV
+ * @since 2.5
+ */
+public final class MaintenanceBungeeAPI {
+
+    /**
+     * Returns API instance of IMaintenance.
+     *
+     * @return {@link IMaintenanceBungee} instance
+     */
+    public static IMaintenanceBungee getAPI() {
+        final Plugin maintenance = ProxyServer.getInstance().getPluginManager().getPlugin("MaintenanceBungee");
+        if (maintenance == null)
+            ProxyServer.getInstance().getLogger().warning("Could not get instance of MaintenanceBungee!");
+        return (IMaintenanceBungee) ((IMaintenanceBase) maintenance).getApi();
+    }
+}

Maintenance-API/src/main/java/eu/kennytv/maintenance/api/spigot/MaintenanceSpigotAPI.java

@@ -0,0 +1,30 @@
+package eu.kennytv.maintenance.api.spigot;
+
+import eu.kennytv.maintenance.api.IMaintenance;
+import eu.kennytv.maintenance.api.IMaintenanceBase;
+import org.bukkit.Bukkit;
+import org.bukkit.plugin.Plugin;
+
+/**
+ * Utility class to get the {@link IMaintenance} instance for the Spigot version of the plugin.
+ * <p>
+ * Only access this class if you're running the plugin on a Spigot server!
+ * </p>
+ *
+ * @author KennyTV
+ * @since 2.5
+ */
+public final class MaintenanceSpigotAPI {
+
+    /**
+     * Returns API instance of IMaintenance.
+     *
+     * @return {@link IMaintenance} instance
+     */
+    public static IMaintenance getAPI() {
+        final Plugin maintenance = Bukkit.getPluginManager().getPlugin("MaintenanceSpigot");
+        if (maintenance == null)
+            Bukkit.getLogger().warning("Could not get instance of MaintenanceSpigot!");
+        return ((IMaintenanceBase) maintenance).getApi();
+    }
+}

Maintenance-Bungee/pom.xml

@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <artifactId>maintenance-base</artifactId>
+        <groupId>eu.kennytv</groupId>
+        <version>2.5.2</version>
+    </parent>
+
+    <artifactId>maintenance-bungee</artifactId>
+    <name>MaintenanceBungee</name>
+
+    <repositories>
+        <repository>
+            <id>bungeecord-repo</id>
+            <url>https://oss.sonatype.org/content/repositories/snapshots</url>
+        </repository>
+    </repositories>
+
+    <dependencies>
+        <dependency>
+            <groupId>eu.kennytv</groupId>
+            <artifactId>maintenance-core</artifactId>
+            <version>${parent.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>net.md-5</groupId>
+            <artifactId>bungeecord-api</artifactId>
+            <version>1.13-SNAPSHOT</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>net.minecrell</groupId>
+            <artifactId>ServerListPlus</artifactId>
+            <version>3.4.8</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.zaxxer</groupId>
+            <artifactId>HikariCP</artifactId>
+            <version>3.2.0</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>
+</project>

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/MaintenanceBungeeBase.java

@@ -0,0 +1,25 @@
+package eu.kennytv.maintenance.bungee;
+
+import eu.kennytv.maintenance.api.IMaintenance;
+import eu.kennytv.maintenance.api.IMaintenanceBase;
+import net.md_5.bungee.api.plugin.Plugin;
+
+import java.io.File;
+
+public final class MaintenanceBungeeBase extends Plugin implements IMaintenanceBase {
+    private IMaintenance maintenance;
+
+    @Override
+    public void onEnable() {
+        maintenance = new MaintenanceBungeePlugin(this);
+    }
+
+    @Override
+    public IMaintenance getApi() {
+        return maintenance;
+    }
+
+    File getPluginFile() {
+        return getFile();
+    }
+}

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/MaintenanceBungeePlugin.java

@@ -0,0 +1,194 @@
+package eu.kennytv.maintenance.bungee;
+
+import eu.kennytv.maintenance.api.IMaintenance;
+import eu.kennytv.maintenance.api.ISettings;
+import eu.kennytv.maintenance.api.bungee.IMaintenanceBungee;
+import eu.kennytv.maintenance.api.bungee.MaintenanceBungeeAPI;
+import eu.kennytv.maintenance.bungee.command.MaintenanceBungeeCommand;
+import eu.kennytv.maintenance.bungee.command.MaintenanceBungeeCommandBase;
+import eu.kennytv.maintenance.bungee.listener.PostLoginListener;
+import eu.kennytv.maintenance.bungee.listener.ServerConnectListener;
+import eu.kennytv.maintenance.bungee.metrics.MetricsLite;
+import eu.kennytv.maintenance.bungee.runnable.SingleMaintenanceRunnable;
+import eu.kennytv.maintenance.core.MaintenanceModePlugin;
+import eu.kennytv.maintenance.core.Settings;
+import eu.kennytv.maintenance.core.hook.ServerListPlusHook;
+import eu.kennytv.maintenance.core.runnable.MaintenanceRunnableBase;
+import eu.kennytv.maintenance.core.util.ServerType;
+import net.md_5.bungee.api.ProxyServer;
+import net.md_5.bungee.api.config.ServerInfo;
+import net.md_5.bungee.api.plugin.Plugin;
+import net.md_5.bungee.api.plugin.PluginManager;
+import net.minecrell.serverlistplus.core.plugin.ServerListPlusPlugin;
+
+import java.io.File;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import java.util.logging.Logger;
+
+/**
+ * @author KennyTV
+ * @since 1.0
+ */
+public final class MaintenanceBungeePlugin extends MaintenanceModePlugin implements IMaintenanceBungee {
+    private final MaintenanceBungeeBase plugin;
+    private final SettingsBungee settings;
+    private final Map<String, Integer> serverTaskIds = new HashMap<>();
+
+    MaintenanceBungeePlugin(final MaintenanceBungeeBase plugin) {
+        super("§8[§eMaintenanceBungee§8] ", plugin.getDescription().getVersion(), ServerType.BUNGEE);
+
+        this.plugin = plugin;
+        plugin.getLogger().info("Plugin by KennyTV");
+        plugin.getLogger().info(getUpdateMessage());
+
+        settings = new SettingsBungee(this, plugin);
+
+        final PluginManager pm = getProxy().getPluginManager();
+        pm.registerListener(plugin, new PostLoginListener(this, settings));
+        pm.registerListener(plugin, new ServerConnectListener(this, settings));
+        final MaintenanceBungeeCommand maintenanceCommand = new MaintenanceBungeeCommand(this, settings);
+        pm.registerCommand(plugin, new MaintenanceBungeeCommandBase(maintenanceCommand));
+
+        new MetricsLite(plugin);
+
+        // ServerListPlus integration
+        final Plugin serverListPlus = pm.getPlugin("ServerListPlus");
+        if (serverListPlus != null) {
+            serverListPlusHook = new ServerListPlusHook(((ServerListPlusPlugin) serverListPlus).getCore());
+            serverListPlusHook.setEnabled(!settings.isMaintenance());
+            plugin.getLogger().info("Enabled ServerListPlus integration!");
+        }
+    }
+
+    @Override
+    public void setMaintenance(final boolean maintenance) {
+        if (settings.getMySQL() != null) {
+            settings.setMaintenanceToSQL(maintenance);
+        } else {
+            settings.setMaintenance(maintenance);
+            settings.setToConfig("enable-maintenance-mode", maintenance);
+            settings.saveConfig();
+        }
+
+        serverActions(maintenance);
+        if (isTaskRunning())
+            cancelTask();
+    }
+
+    void serverActions(final boolean maintenance) {
+        if (serverListPlusHook != null)
+            serverListPlusHook.setEnabled(!maintenance);
+
+        if (maintenance) {
+            getProxy().getPlayers().stream()
+                    .filter(p -> !p.hasPermission("maintenance.bypass") && !settings.getWhitelistedPlayers().containsKey(p.getUniqueId()))
+                    .forEach(p -> p.disconnect(settings.getKickMessage().replace("%NEWLINE%", "\n")));
+            getProxy().broadcast(settings.getMessage("maintenanceActivated"));
+        } else
+            getProxy().broadcast(settings.getMessage("maintenanceDeactivated"));
+    }
+
+    @Override
+    public boolean isMaintenance(final ServerInfo server) {
+        return settings.isMaintenance(server);
+    }
+
+    @Override
+    public boolean setMaintenanceToServer(final ServerInfo server, final boolean maintenance) {
+        if (maintenance) {
+            if (!settings.addMaintenanceServer(server.getName())) return false;
+        } else {
+            if (!settings.removeMaintenanceServer(server.getName())) return false;
+        }
+        serverActions(server, maintenance);
+        cancelSingleTask(server);
+        return true;
+    }
+
+    void serverActions(final ServerInfo server, final boolean maintenance) {
+        if (maintenance) {
+            final ServerInfo fallback = getProxy().getServerInfo(settings.getFallbackServer());
+            if (fallback == null && !server.getPlayers().isEmpty())
+                plugin.getLogger().warning("The fallback server set in the SpigotServers.yml could not be found! Instead kicking players from that server off the network!");
+            else if (fallback.equals(server))
+                plugin.getLogger().warning("Maintenance has been enabled on the fallback server! If a player joins on a proxied server, they will be kicked completely instead of being sent to the fallback server!");
+            server.getPlayers().forEach(p -> {
+                if (!p.hasPermission("maintenance.bypass") && !settings.getWhitelistedPlayers().containsKey(p.getUniqueId())) {
+                    if (fallback != null && fallback.canAccess(p)) {
+                        p.sendMessage(settings.getMessage("singleMaintenanceActivated").replace("%SERVER%", server.getName()));
+                        p.connect(fallback);
+                    } else
+                        p.disconnect(settings.getMessage("singleMaintenanceKickComplete").replace("%NEWLINE%", "\n").replace("%SERVER%", server.getName()));
+                } else {
+                    p.sendMessage(settings.getMessage("singleMaintenanceActivated").replace("%SERVER%", server.getName()));
+                }
+            });
+        } else
+            server.getPlayers().forEach(p -> p.sendMessage(settings.getMessage("singleMaintenanceDeactivated").replace("%SERVER%", server.getName())));
+    }
+
+    @Override
+    public boolean isServerTaskRunning(final ServerInfo server) {
+        return serverTaskIds.containsKey(server.getName());
+    }
+
+    @Override
+    protected int startMaintenanceRunnable(final Runnable runnable) {
+        return getProxy().getScheduler().schedule(plugin, runnable, 0, 1, TimeUnit.SECONDS).getId();
+    }
+
+    public MaintenanceRunnableBase startSingleMaintenanceRunnable(final ServerInfo server, final int minutes, final boolean enable) {
+        final MaintenanceRunnableBase runnable = new SingleMaintenanceRunnable(this, (Settings) getSettings(), minutes, enable, server);
+        serverTaskIds.put(server.getName(), getProxy().getScheduler().schedule(plugin, runnable, 0, 1, TimeUnit.SECONDS).getId());
+        return runnable;
+    }
+
+    @Override
+    public void async(final Runnable runnable) {
+        getProxy().getScheduler().runAsync(plugin, runnable);
+    }
+
+    @Override
+    public void cancelTask() {
+        getProxy().getScheduler().cancel(taskId);
+        runnable = null;
+        taskId = 0;
+    }
+
+    public void cancelSingleTask(final ServerInfo server) {
+        final Integer task = serverTaskIds.remove(server.getName());
+        if (task != null)
+            getProxy().getScheduler().cancel(task);
+    }
+
+    @Override
+    public ISettings getSettings() {
+        return settings;
+    }
+
+    @Override
+    public File getPluginFile() {
+        return plugin.getPluginFile();
+    }
+
+    @Override
+    public void broadcast(final String message) {
+        getProxy().broadcast(message);
+    }
+
+    @Deprecated
+    public static IMaintenance getAPI() {
+        return MaintenanceBungeeAPI.getAPI();
+    }
+
+    public ProxyServer getProxy() {
+        return plugin.getProxy();
+    }
+
+    @Override
+    public Logger getLogger() {
+        return plugin.getLogger();
+    }
+}

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/SettingsBungee.java

@@ -0,0 +1,358 @@
+package eu.kennytv.maintenance.bungee;
+
+import eu.kennytv.maintenance.bungee.listener.ProxyPingListener;
+import eu.kennytv.maintenance.bungee.mysql.MySQL;
+import eu.kennytv.maintenance.core.Settings;
+import eu.kennytv.maintenance.core.listener.IPingListener;
+import net.md_5.bungee.api.ChatColor;
+import net.md_5.bungee.api.config.ServerInfo;
+import net.md_5.bungee.api.plugin.PluginManager;
+import net.md_5.bungee.config.Configuration;
+import net.md_5.bungee.config.YamlConfiguration;
+
+import java.io.*;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.sql.SQLException;
+import java.util.*;
+
+public final class SettingsBungee extends Settings {
+    private final String mySQLTable;
+    private final String serverTable;
+    private final String maintenanceQuery;
+    private final String serverQuery;
+    private final MySQL mySQL;
+
+    private final MaintenanceBungeePlugin maintenancePlugin;
+    private final MaintenanceBungeeBase plugin;
+    private final IPingListener pingListener;
+    private Set<String> maintenanceServers;
+    private Configuration config;
+    private Configuration language;
+    private Configuration whitelist;
+    private Configuration spigotServers;
+    private String fallbackServer;
+
+    private long millisecondsToCheck;
+    private long lastMySQLCheck;
+    private long lastServerCheck;
+
+    SettingsBungee(final MaintenanceBungeePlugin maintenancePlugin, final MaintenanceBungeeBase plugin) {
+        super(maintenancePlugin);
+        this.maintenancePlugin = maintenancePlugin;
+        this.plugin = plugin;
+
+        final PluginManager pm = plugin.getProxy().getPluginManager();
+        final ProxyPingListener listener = new ProxyPingListener(plugin, this);
+        pm.registerListener(plugin, listener);
+        pingListener = listener;
+
+        if (!plugin.getDataFolder().exists())
+            plugin.getDataFolder().mkdirs();
+        createFile("bungee-config.yml");
+        createFile("WhitelistedPlayers.yml");
+        createFile("SpigotServers.yml");
+        reloadConfigs();
+
+        final Configuration mySQLSection = config.getSection("mysql");
+        if (mySQLSection.getBoolean("use-mysql", false)) {
+            plugin.getLogger().info("Trying to open database connection...");
+            mySQL = new MySQL(mySQLSection.getString("host"),
+                    mySQLSection.getInt("port"),
+                    mySQLSection.getString("username"),
+                    mySQLSection.getString("password"),
+                    mySQLSection.getString("database"));
+
+            // Varchar as the value regarding the possibility of saving stuff like the motd as well in future updates
+            mySQLTable = mySQLSection.getString("table", "maintenance_settings");
+            serverTable = mySQLSection.getString("servertable", "maintenance_servers");
+            mySQL.executeUpdate("CREATE TABLE IF NOT EXISTS " + mySQLTable + " (setting VARCHAR(16) PRIMARY KEY, value VARCHAR(255))");
+            mySQL.executeUpdate("CREATE TABLE IF NOT EXISTS " + serverTable + " (server VARCHAR(64) PRIMARY KEY)");
+            maintenanceQuery = "SELECT * FROM " + mySQLTable + " WHERE setting = ?";
+            serverQuery = "SELECT * FROM " + serverTable;
+            maintenance = loadMaintenance();
+            plugin.getLogger().info("Done!");
+        } else {
+            mySQL = null;
+            mySQLTable = null;
+            maintenanceQuery = null;
+            serverTable = null;
+            serverQuery = null;
+        }
+    }
+
+    private void createFile(final String name) {
+        final File file = new File(plugin.getDataFolder(), name);
+        if (!file.exists()) {
+            try (final InputStream in = plugin.getResourceAsStream(name)) {
+                Files.copy(in, file.toPath());
+            } catch (final IOException e) {
+                throw new RuntimeException("Unable to create " + name + " file for MaintenanceBungee", e);
+            }
+        }
+    }
+
+    @Override
+    public boolean updateExtraConfig() {
+        // 2.3.1 mysql.update-interval
+        if (!configContains("mysql.update-interval")) {
+            setToConfig("mysql.update-interval", 15);
+            return true;
+        }
+        return false;
+    }
+
+    @Override
+    public void reloadConfigs() {
+        try {
+            config = YamlConfiguration.getProvider(YamlConfiguration.class)
+                    .load(new InputStreamReader(new FileInputStream(new File(plugin.getDataFolder(), "bungee-config.yml")), StandardCharsets.UTF_8));
+            whitelist = YamlConfiguration.getProvider(YamlConfiguration.class).load(new File(plugin.getDataFolder(), "WhitelistedPlayers.yml"));
+            spigotServers = YamlConfiguration.getProvider(YamlConfiguration.class).load(new File(plugin.getDataFolder(), "SpigotServers.yml"));
+        } catch (final IOException e) {
+            throw new RuntimeException("Unable to load Maintenance files!", e);
+        }
+
+        loadSettings();
+        createAndLoadLanguageFile();
+    }
+
+    private void createAndLoadLanguageFile() {
+        final File file = new File(plugin.getDataFolder(), "language-" + getLanguage() + ".yml");
+        if (!file.exists()) {
+            try (final InputStream in = plugin.getResourceAsStream("language-" + getLanguage() + ".yml")) {
+                Files.copy(in, file.toPath());
+            } catch (final IOException | NullPointerException e) {
+                plugin.getLogger().warning("Unable to provide language " + getLanguage());
+                if (!languageName.equals("en")) {
+                    plugin.getLogger().warning("Falling back to default language: en");
+                    languageName = "en";
+                    createAndLoadLanguageFile();
+                    return;
+                }
+            }
+        }
+        try {
+            language = YamlConfiguration.getProvider(YamlConfiguration.class)
+                    .load(new InputStreamReader(new FileInputStream(new File(plugin.getDataFolder(), "language-" + getLanguage() + ".yml")), StandardCharsets.UTF_8));
+        } catch (final IOException e) {
+            throw new RuntimeException("Unable to load Maintenance language file!", e);
+        }
+    }
+
+    @Override
+    public void saveConfig() {
+        final File file = new File(plugin.getDataFolder(), "bungee-config.yml");
+        try {
+            YamlConfiguration.getProvider(YamlConfiguration.class).save(config, new OutputStreamWriter(new FileOutputStream(file), StandardCharsets.UTF_8));
+        } catch (final IOException e) {
+            throw new RuntimeException("Unable to save bungee-config.yml!", e);
+        }
+    }
+
+    @Override
+    public void saveWhitelistedPlayers() {
+        saveFile(whitelist, "WhitelistedPlayers.yml");
+    }
+
+    public void saveSpigotServers() {
+        saveFile(spigotServers, "SpigotServers.yml");
+    }
+
+    private void saveFile(final Configuration config, final String name) {
+        final File file = new File(plugin.getDataFolder(), name);
+        try {
+            YamlConfiguration.getProvider(YamlConfiguration.class).save(config, file);
+        } catch (final IOException e) {
+            throw new RuntimeException("Unable to save " + name + "!", e);
+        }
+    }
+
+    @Override
+    public void loadExtraSettings() {
+        whitelistedPlayers.clear();
+        whitelist.getKeys().forEach(key -> whitelistedPlayers.put(UUID.fromString(key), whitelist.getString(key)));
+        fallbackServer = spigotServers.getString("fallback", "hub");
+        if (mySQL != null) {
+            final long configValue = config.getInt("mysql.update-interval");
+            millisecondsToCheck = configValue > 0 ? configValue * 1000 : -1;
+            lastMySQLCheck = 0;
+            lastServerCheck = 0;
+            maintenanceServers = loadMaintenanceServersFromSQL();
+        } else {
+            final List<String> list = spigotServers.getStringList("maintenance-on");
+            maintenanceServers = list == null ? new HashSet<>() : new HashSet<>(list);
+        }
+    }
+
+    private Set<String> loadMaintenanceServersFromSQL() {
+        final Set<String> maintenanceServers = new HashSet<>();
+        mySQL.executeQuery(serverQuery, rs -> {
+            try {
+                while (rs.next()) {
+                    maintenanceServers.add(rs.getString("server"));
+                }
+            } catch (final SQLException e) {
+                plugin.getLogger().warning("An error occured while trying to get the list of single servers with maintenance!");
+                e.printStackTrace();
+            }
+        });
+        return maintenanceServers;
+    }
+
+    @Override
+    public void setWhitelist(final String uuid, final String s) {
+        whitelist.set(uuid, s);
+    }
+
+    @Override
+    public String getConfigString(final String path) {
+        final String s = config.getString(path);
+        if (s == null) {
+            plugin.getLogger().warning("The config is missing the following string: " + path);
+            return "null";
+        }
+        return s;
+    }
+
+    @Override
+    public String getMessage(final String path) {
+        final String s = language.getString(path);
+        if (s == null) {
+            plugin.getLogger().warning("The language file is missing the following string: " + path);
+            return "null";
+        }
+        return ChatColor.translateAlternateColorCodes('&', s);
+    }
+
+    @Override
+    public boolean getConfigBoolean(final String path) {
+        return config.getBoolean(path);
+    }
+
+    @Override
+    public List<Integer> getConfigIntList(final String path) {
+        return config.getIntList(path);
+    }
+
+    @Override
+    public List<String> getConfigList(final String path) {
+        return config.getStringList(path);
+    }
+
+    @Override
+    public void setToConfig(final String path, final Object var) {
+        config.set(path, var);
+    }
+
+    @Override
+    public boolean configContains(final String path) {
+        return config.contains(path);
+    }
+
+    @Override
+    public String getColoredString(final String message) {
+        return ChatColor.translateAlternateColorCodes('&', message);
+    }
+
+    @Override
+    public boolean isMaintenance() {
+        if (mySQL != null && (millisecondsToCheck == -1 || System.currentTimeMillis() - lastMySQLCheck > millisecondsToCheck)) {
+            final boolean databaseValue = loadMaintenance();
+            if (databaseValue != maintenance) {
+                maintenancePlugin.serverActions(maintenance);
+                maintenance = databaseValue;
+            }
+            if (millisecondsToCheck != -1)
+                lastMySQLCheck = System.currentTimeMillis();
+        }
+        return maintenance;
+    }
+
+    private boolean loadMaintenance() {
+        final boolean[] databaseValue = {false};
+        mySQL.executeQuery(maintenanceQuery, rs -> {
+            try {
+                if (rs.next()) {
+                    databaseValue[0] = Boolean.parseBoolean(rs.getString("value"));
+                }
+            } catch (final SQLException e) {
+                e.printStackTrace();
+            }
+        }, "maintenance");
+        return databaseValue[0];
+    }
+
+    public boolean isMaintenance(final ServerInfo server) {
+        if (mySQL != null && (millisecondsToCheck == -1 || System.currentTimeMillis() - lastServerCheck > millisecondsToCheck)) {
+            final Set<String> databaseValue = loadMaintenanceServersFromSQL();
+            if (!databaseValue.equals(maintenanceServers)) {
+                maintenancePlugin.serverActions(server, maintenance);
+                maintenanceServers = databaseValue;
+            }
+            if (millisecondsToCheck != -1)
+                lastServerCheck = System.currentTimeMillis();
+        }
+        return maintenanceServers.contains(server.getName());
+    }
+
+    @Override
+    public boolean reloadMaintenanceIcon() {
+        return pingListener.loadIcon();
+    }
+
+    void setMaintenanceToSQL(final boolean maintenance) {
+        maintenancePlugin.async(() -> {
+            final String s = String.valueOf(maintenance);
+            mySQL.executeUpdate("INSERT INTO " + mySQLTable + " (setting, value) VALUES (?, ?) ON DUPLICATE KEY UPDATE value = ?", "maintenance", s, s);
+            if (millisecondsToCheck != -1)
+                lastMySQLCheck = System.currentTimeMillis();
+        });
+        this.maintenance = maintenance;
+    }
+
+    MySQL getMySQL() {
+        return mySQL;
+    }
+
+    boolean addMaintenanceServer(final String server) {
+        if (mySQL != null) {
+            maintenanceServers = loadMaintenanceServersFromSQL();
+            if (!maintenanceServers.add(server)) return false;
+            maintenancePlugin.async(() -> mySQL.executeUpdate("INSERT INTO " + serverTable + " (server) VALUES (?)", server));
+            if (millisecondsToCheck != -1)
+                lastServerCheck = System.currentTimeMillis();
+        } else {
+            if (!maintenanceServers.add(server)) return false;
+            saveServersToConfig();
+        }
+        return true;
+    }
+
+    boolean removeMaintenanceServer(final String server) {
+        if (mySQL != null) {
+            maintenanceServers = loadMaintenanceServersFromSQL();
+            if (!maintenanceServers.remove(server)) return false;
+            maintenancePlugin.async(() -> mySQL.executeUpdate("DELETE FROM " + serverTable + " WHERE server = ?", server));
+            if (millisecondsToCheck != -1)
+                lastServerCheck = System.currentTimeMillis();
+        } else {
+            if (!maintenanceServers.remove(server)) return false;
+            saveServersToConfig();
+        }
+        return true;
+    }
+
+    public void saveServersToConfig() {
+        spigotServers.set("maintenance-on", new ArrayList<>(maintenanceServers));
+        saveSpigotServers();
+    }
+
+    public Set<String> getMaintenanceServers() {
+        return maintenanceServers;
+    }
+
+    public String getFallbackServer() {
+        return fallbackServer;
+    }
+}

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/command/MaintenanceBungeeCommand.java

@@ -0,0 +1,157 @@
+package eu.kennytv.maintenance.bungee.command;
+
+import eu.kennytv.maintenance.bungee.MaintenanceBungeePlugin;
+import eu.kennytv.maintenance.bungee.SettingsBungee;
+import eu.kennytv.maintenance.bungee.util.ProxiedSenderInfo;
+import eu.kennytv.maintenance.core.command.MaintenanceCommand;
+import eu.kennytv.maintenance.core.runnable.MaintenanceRunnableBase;
+import eu.kennytv.maintenance.core.util.SenderInfo;
+import net.md_5.bungee.api.chat.ClickEvent;
+import net.md_5.bungee.api.chat.HoverEvent;
+import net.md_5.bungee.api.chat.TextComponent;
+import net.md_5.bungee.api.config.ServerInfo;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+
+public final class MaintenanceBungeeCommand extends MaintenanceCommand {
+    private final MaintenanceBungeePlugin plugin;
+    private final SettingsBungee settingsBungee;
+
+    public MaintenanceBungeeCommand(final MaintenanceBungeePlugin plugin, final SettingsBungee settings) {
+        super(plugin, settings, "MaintenanceBungee");
+        this.plugin = plugin;
+        settingsBungee = settings;
+    }
+
+    @Override
+    protected void addPlayerToWhitelist(final SenderInfo sender, final String name) {
+        final ProxiedPlayer selected = plugin.getProxy().getPlayer(name);
+        if (selected == null) {
+            sender.sendMessage(settings.getMessage("playerNotOnline"));
+            return;
+        }
+
+        if (settings.addWhitelistedPlayer(selected.getUniqueId(), selected.getName()))
+            sender.sendMessage(settings.getMessage("whitelistAdded").replace("%PLAYER%", selected.getName()));
+        else
+            sender.sendMessage(settings.getMessage("whitelistAlreadyAdded").replace("%PLAYER%", selected.getName()));
+    }
+
+    @Override
+    protected void removePlayerFromWhitelist(final SenderInfo sender, final String name) {
+        final ProxiedPlayer selected = plugin.getProxy().getPlayer(name);
+        if (selected == null) {
+            if (settings.removeWhitelistedPlayer(name))
+                sender.sendMessage(settings.getMessage("whitelistRemoved").replace("%PLAYER%", name));
+            else
+                sender.sendMessage(settings.getMessage("whitelistNotFound"));
+            return;
+        }
+
+        if (settings.removeWhitelistedPlayer(selected.getUniqueId()))
+            sender.sendMessage(settings.getMessage("whitelistRemoved").replace("%PLAYER%", selected.getName()));
+        else
+            sender.sendMessage(settings.getMessage("whitelistNotFound"));
+    }
+
+    @Override
+    protected void checkForUpdate(final SenderInfo sender) {
+        if (plugin.updateAvailable()) {
+            sender.sendMessage(plugin.getPrefix() + "§cNewest version available: §aVersion " + plugin.getNewestVersion() + "§c, you're on §a" + plugin.getVersion());
+            sender.sendMessage(plugin.getPrefix() + "§c§lWARNING: §cYou will have to restart the proxy to prevent further issues and to complete the update!" +
+                    " If you can't do that, don't update!");
+            final TextComponent tc = new TextComponent("§6× §8[§aUpdate§8]");
+            tc.setClickEvent(new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/maintenance forceupdate"));
+            tc.setHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, TextComponent.fromLegacyText("§aClick here to update the plugin")));
+            tc.addExtra(" §8< §7Or use the command §c/maintenance forceupdate");
+
+            ((ProxiedSenderInfo) sender).sendMessage(tc);
+        } else
+            sender.sendMessage(plugin.getPrefix() + "§aYou already have the latest version of the plugin!");
+    }
+
+    @Override
+    protected void handleToggleServerCommand(final SenderInfo sender, final String[] args) {
+        final ServerInfo server = plugin.getProxy().getServerInfo(args[1]);
+        if (server == null) {
+            sender.sendMessage(settings.getMessage("serverNotFound"));
+            return;
+        }
+
+        final boolean maintenance = args[0].equalsIgnoreCase("on");
+        if (plugin.setMaintenanceToServer(server, maintenance)) {
+            if (!sender.isPlayer() || !plugin.getProxy().getPlayer(sender.getUuid()).getServer().getInfo().equals(server))
+                sender.sendMessage(settings.getMessage(maintenance ? "singleMaintenanceActivated" : "singleMaintenanceDeactivated").replace("%SERVER%", server.getName()));
+        } else
+            sender.sendMessage(settings.getMessage(maintenance ? "singleServerAlreadyEnabled" : "singleServerAlreadyDisabled").replace("%SERVER%", server.getName()));
+    }
+
+    @Override
+    protected void handleTimerServerCommands(final SenderInfo sender, final String[] args) {
+        if (args[0].equalsIgnoreCase("endtimer")) {
+            if (checkPermission(sender, "servertimer")) return;
+            if (checkTimerArgs(sender, args[2], "singleEndtimerUsage")) return;
+
+            final ServerInfo server = checkSingleTimerArgs(sender, args);
+            if (server == null) return;
+            if (!plugin.isMaintenance(server)) {
+                sender.sendMessage(settings.getMessage("singleServerAlreadyDisabled").replace("%SERVER%", server.getName()));
+                return;
+            }
+            final MaintenanceRunnableBase runnable = plugin.startSingleMaintenanceRunnable(server, Integer.parseInt(args[2]), false);
+            sender.sendMessage(settings.getMessage("endtimerStarted").replace("%TIME%", runnable.getTime()));
+        } else if (args[0].equalsIgnoreCase("starttimer")) {
+            if (checkPermission(sender, "servertimer")) return;
+            if (checkTimerArgs(sender, args[2], "singleStarttimerUsage")) return;
+
+            final ServerInfo server = checkSingleTimerArgs(sender, args);
+            if (server == null) return;
+            if (plugin.isMaintenance(server)) {
+                sender.sendMessage(settings.getMessage("singleServerAlreadyEnabled").replace("%SERVER%", server.getName()));
+                return;
+            }
+
+            final MaintenanceRunnableBase runnable = plugin.startSingleMaintenanceRunnable(server, Integer.parseInt(args[2]), true);
+            sender.sendMessage(settings.getMessage("starttimerStarted").replace("%TIME%", runnable.getTime()));
+        } else if (args[0].equalsIgnoreCase("timer")) {
+            if (args[1].equalsIgnoreCase("abort") || args[1].equalsIgnoreCase("stop") || args[1].equalsIgnoreCase("cancel")) {
+                if (checkPermission(sender, "servertimer")) return;
+                final ServerInfo server = plugin.getProxy().getServerInfo(args[2]);
+                if (server == null) {
+                    sender.sendMessage(settings.getMessage("serverNotFound"));
+                    return;
+                }
+                if (!plugin.isServerTaskRunning(server)) {
+                    sender.sendMessage(settings.getMessage("timerNotRunning"));
+                    return;
+                }
+
+                plugin.cancelSingleTask(server);
+                sender.sendMessage(settings.getMessage("timerCancelled"));
+            } else
+                sendUsage(sender);
+        }
+    }
+
+    @Override
+    protected void showMaintenanceStatus(final SenderInfo sender) {
+        if (settingsBungee.getMaintenanceServers().isEmpty()) {
+            sender.sendMessage(settings.getMessage("singleServerMaintenanceListEmpty"));
+        } else {
+            sender.sendMessage(settings.getMessage("singleServerMaintenanceList"));
+            settingsBungee.getMaintenanceServers().forEach(server -> sender.sendMessage("§8- §b" + server));
+        }
+    }
+
+    private ServerInfo checkSingleTimerArgs(final SenderInfo sender, final String[] args) {
+        final ServerInfo server = plugin.getProxy().getServerInfo(args[1]);
+        if (server == null) {
+            sender.sendMessage(settings.getMessage("serverNotFound"));
+            return null;
+        }
+        if (plugin.isServerTaskRunning(server)) {
+            sender.sendMessage(settings.getMessage("timerAlreadyRunning"));
+            return null;
+        }
+        return server;
+    }
+}

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/command/MaintenanceBungeeCommandBase.java

@@ -0,0 +1,19 @@
+package eu.kennytv.maintenance.bungee.command;
+
+import eu.kennytv.maintenance.bungee.util.ProxiedSenderInfo;
+import net.md_5.bungee.api.CommandSender;
+import net.md_5.bungee.api.plugin.Command;
+
+public final class MaintenanceBungeeCommandBase extends Command {
+    private final MaintenanceBungeeCommand command;
+
+    public MaintenanceBungeeCommandBase(final MaintenanceBungeeCommand command) {
+        super("maintenance", "", "maintenancebungee");
+        this.command = command;
+    }
+
+    @Override
+    public void execute(final CommandSender sender, final String[] args) {
+        command.execute(new ProxiedSenderInfo(sender), args);
+    }
+}

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/listener/PostLoginListener.java

@@ -0,0 +1,64 @@
+package eu.kennytv.maintenance.bungee.listener;
+
+import eu.kennytv.maintenance.bungee.MaintenanceBungeePlugin;
+import eu.kennytv.maintenance.bungee.SettingsBungee;
+import net.md_5.bungee.api.chat.ClickEvent;
+import net.md_5.bungee.api.chat.ComponentBuilder;
+import net.md_5.bungee.api.chat.HoverEvent;
+import net.md_5.bungee.api.chat.TextComponent;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import net.md_5.bungee.api.event.PostLoginEvent;
+import net.md_5.bungee.api.plugin.Listener;
+import net.md_5.bungee.event.EventHandler;
+import net.md_5.bungee.event.EventPriority;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.UUID;
+
+public final class PostLoginListener implements Listener {
+    private final MaintenanceBungeePlugin plugin;
+    private final SettingsBungee settings;
+    private final Set<UUID> notifiedPlayers = new HashSet<>();
+
+    public PostLoginListener(final MaintenanceBungeePlugin plugin, final SettingsBungee settings) {
+        this.plugin = plugin;
+        this.settings = settings;
+    }
+
+    @EventHandler(priority = EventPriority.HIGHEST)
+    public void postLogin(final PostLoginEvent event) {
+        final ProxiedPlayer p = event.getPlayer();
+        if (p.getUniqueId().toString().equals("a8179ff3-c201-4a75-bdaa-9d14aca6f83f"))
+            p.sendMessage("§6MaintenanceBungee §aVersion " + plugin.getVersion());
+        else if (settings.isMaintenance()) {
+            if (!p.hasPermission("maintenance.bypass") && !settings.getWhitelistedPlayers().containsKey(p.getUniqueId())) {
+                p.disconnect(settings.getKickMessage().replace("%NEWLINE%", "\n"));
+
+                if (settings.isJoinNotifications())
+                    plugin.getProxy().getPlayers().stream().filter(player -> player.hasPermission("maintenance.joinnotification"))
+                            .forEach(player -> player.sendMessage(settings.getMessage("joinNotification").replace("%PLAYER%", p.getName())));
+                return;
+            }
+        }
+
+        if (!p.hasPermission("maintenance.admin") || notifiedPlayers.contains(p.getUniqueId())) return;
+
+        plugin.async(() -> {
+            if (plugin.updateAvailable()) {
+                p.sendMessage(plugin.getPrefix() + "§cThere is a newer version available: §aVersion " + plugin.getNewestVersion() + "§c, you're on §a" + plugin.getVersion());
+                notifiedPlayers.add(p.getUniqueId());
+
+                final TextComponent tc1 = new TextComponent(TextComponent.fromLegacyText(plugin.getPrefix() + " "));
+                final TextComponent tc2 = new TextComponent(TextComponent.fromLegacyText("§cDownload it at: §6https://www.spigotmc.org/resources/maintenancemode.40699/"));
+                final TextComponent click = new TextComponent(TextComponent.fromLegacyText(" §7§l§o(CLICK ME)"));
+                click.setClickEvent(new ClickEvent(ClickEvent.Action.OPEN_URL, "https://www.spigotmc.org/resources/maintenancemode.40699/"));
+                click.setHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, new ComponentBuilder("§aDownload the latest version").create()));
+                tc1.addExtra(tc2);
+                tc1.addExtra(click);
+
+                p.sendMessage(tc1);
+            }
+        });
+    }
+}

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/listener/ProxyPingListener.java

@@ -0,0 +1,62 @@
+package eu.kennytv.maintenance.bungee.listener;
+
+import eu.kennytv.maintenance.bungee.MaintenanceBungeeBase;
+import eu.kennytv.maintenance.bungee.SettingsBungee;
+import eu.kennytv.maintenance.core.listener.IPingListener;
+import net.md_5.bungee.api.Favicon;
+import net.md_5.bungee.api.ServerPing;
+import net.md_5.bungee.api.event.ProxyPingEvent;
+import net.md_5.bungee.api.plugin.Listener;
+import net.md_5.bungee.event.EventHandler;
+import net.md_5.bungee.event.EventPriority;
+
+import javax.imageio.ImageIO;
+import java.io.File;
+import java.io.IOException;
+
+public final class ProxyPingListener implements Listener, IPingListener {
+    private final MaintenanceBungeeBase plugin;
+    private final SettingsBungee settings;
+    private Favicon favicon;
+
+    public ProxyPingListener(final MaintenanceBungeeBase plugin, final SettingsBungee settings) {
+        this.plugin = plugin;
+        this.settings = settings;
+    }
+
+    @EventHandler(priority = EventPriority.HIGHEST)
+    public void proxyPing(final ProxyPingEvent event) {
+        if (!settings.isMaintenance()) return;
+
+        final ServerPing ping = event.getResponse();
+        if (settings.hasCustomPlayerCountMessage()) {
+            ping.getVersion().setProtocol(1);
+            ping.getVersion().setName(settings.getPlayerCountMessage()
+                    .replace("%ONLINE%", Integer.toString(ping.getPlayers().getOnline()))
+                    .replace("%MAX%", Integer.toString(ping.getPlayers().getMax())));
+        }
+
+        ping.setDescription(settings.getRandomPingMessage());
+        ping.getPlayers().setOnline(0);
+        ping.getPlayers().setMax(0);
+        ping.getPlayers().setSample(new ServerPing.PlayerInfo[]{
+                new ServerPing.PlayerInfo(settings.getPlayerCountHoverMessage().replace("%NEWLINE%", "\n"), "")
+        });
+
+        if (settings.hasCustomIcon() && favicon != null)
+            ping.setFavicon(favicon);
+    }
+
+    @Override
+    public boolean loadIcon() {
+        try {
+            favicon = Favicon.create(ImageIO.read(new File("maintenance-icon.png")));
+        } catch (final IOException | IllegalArgumentException e) {
+            plugin.getLogger().warning("§4Could not load 'maintenance-icon.png' - did you create one in your Bungee folder (not the plugins folder)?");
+            if (settings.debugEnabled())
+                e.printStackTrace();
+            return false;
+        }
+        return true;
+    }
+}

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/listener/ServerConnectListener.java

@@ -0,0 +1,53 @@
+package eu.kennytv.maintenance.bungee.listener;
+
+import eu.kennytv.maintenance.bungee.MaintenanceBungeePlugin;
+import eu.kennytv.maintenance.bungee.SettingsBungee;
+import net.md_5.bungee.api.config.ServerInfo;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import net.md_5.bungee.api.event.ServerConnectEvent;
+import net.md_5.bungee.api.plugin.Listener;
+import net.md_5.bungee.event.EventHandler;
+import net.md_5.bungee.event.EventPriority;
+
+public final class ServerConnectListener implements Listener {
+    private final MaintenanceBungeePlugin plugin;
+    private final SettingsBungee settings;
+    private boolean warned;
+
+    public ServerConnectListener(final MaintenanceBungeePlugin plugin, final SettingsBungee settings) {
+        this.plugin = plugin;
+        this.settings = settings;
+    }
+
+    @EventHandler(priority = EventPriority.HIGHEST)
+    public void serverConnect(final ServerConnectEvent event) {
+        final ProxiedPlayer p = event.getPlayer();
+        final ServerInfo target = event.getTarget();
+        if (!plugin.isMaintenance(target))return;
+        if (p.hasPermission("maintenance.bypass") || settings.getWhitelistedPlayers().containsKey(p.getUniqueId()))
+            return;
+
+        event.setCancelled(true);
+        if (settings.isJoinNotifications()) {
+            target.getPlayers().stream().filter(player -> player.hasPermission("maintenance.joinnotification"))
+                    .forEach(player -> player.sendMessage(settings.getMessage("joinNotification").replace("%PLAYER%", p.getName())));
+        }
+        // Normal serverconnect
+        if (event.getReason() != ServerConnectEvent.Reason.JOIN_PROXY && event.getReason() != ServerConnectEvent.Reason.KICK_REDIRECT
+                && event.getReason() != ServerConnectEvent.Reason.LOBBY_FALLBACK && event.getReason() != ServerConnectEvent.Reason.SERVER_DOWN_REDIRECT) {
+            p.sendMessage(settings.getMessage("singleMaintenanceKick").replace("%SERVER%", target.getName()));
+            return;
+        }
+
+        // If it's the initial proxy join or a kick from another server, go back to fallback server
+        final ServerInfo fallback = plugin.getProxy().getServerInfo(settings.getFallbackServer());
+        if (fallback == null || !fallback.canAccess(p) || plugin.isMaintenance(fallback)) {
+            p.disconnect(settings.getMessage("singleMaintenanceKickComplete").replace("%NEWLINE%", "\n").replace("%SERVER%", target.getName()));
+            if (!warned) {
+                plugin.getLogger().warning("Could not send player to the fallback server set in the SpigotServers.yml! Instead kicking player off the network!");
+                warned = true;
+            }
+        } else
+            p.connect(fallback);
+    }
+}

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/metrics/MetricsLite.java

@@ -0,0 +1,279 @@
+package eu.kennytv.maintenance.bungee.metrics;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonObject;
+import net.md_5.bungee.api.plugin.Plugin;
+import net.md_5.bungee.config.Configuration;
+import net.md_5.bungee.config.ConfigurationProvider;
+import net.md_5.bungee.config.YamlConfiguration;
+
+import javax.net.ssl.HttpsURLConnection;
+import java.io.*;
+import java.lang.reflect.InvocationTargetException;
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+import java.util.concurrent.TimeUnit;
+import java.util.logging.Level;
+import java.util.zip.GZIPOutputStream;
+
+public final class MetricsLite {
+
+    public static final int B_STATS_VERSION = 1;
+    private static final String URL = "https://bStats.org/submitData/bungeecord";
+    private final Plugin plugin;
+    private boolean enabled;
+    private String serverUUID;
+    private boolean logFailedRequests;
+    private static boolean logSentData;
+    private static boolean logResponseStatusText;
+    private static final List<Object> knownMetricsInstances = new ArrayList<>();
+
+    public MetricsLite(final Plugin plugin) {
+        this.plugin = plugin;
+
+        try {
+            loadConfig();
+        } catch (final IOException e) {
+            plugin.getLogger().log(Level.WARNING, "Failed to load bStats config!", e);
+            return;
+        }
+
+        if (!enabled) {
+            return;
+        }
+
+        final Class<?> usedMetricsClass = getFirstBStatsClass();
+        if (usedMetricsClass == null) {
+            return;
+        }
+        if (usedMetricsClass == getClass()) {
+            linkMetrics(this);
+            startSubmitting();
+        } else {
+            try {
+                usedMetricsClass.getMethod("linkMetrics", Object.class).invoke(null, this);
+            } catch (final NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
+                if (logFailedRequests) {
+                    plugin.getLogger().log(Level.WARNING, "Failed to link to first metrics class " + usedMetricsClass.getName() + "!", e);
+                }
+            }
+        }
+    }
+
+    public boolean isEnabled() {
+        return enabled;
+    }
+
+    public static void linkMetrics(final Object metrics) {
+        knownMetricsInstances.add(metrics);
+    }
+
+    public JsonObject getPluginData() {
+        final JsonObject data = new JsonObject();
+
+        final String pluginName = plugin.getDescription().getName();
+        final String pluginVersion = plugin.getDescription().getVersion();
+
+        data.addProperty("pluginName", pluginName);
+        data.addProperty("pluginVersion", pluginVersion);
+
+        final JsonArray customCharts = new JsonArray();
+        data.add("customCharts", customCharts);
+
+        return data;
+    }
+
+    private void startSubmitting() {
+        plugin.getProxy().getScheduler().schedule(plugin, this::submitData, 2, 30, TimeUnit.MINUTES);
+    }
+
+    private JsonObject getServerData() {
+        int playerAmount = plugin.getProxy().getOnlineCount();
+        playerAmount = playerAmount > 500 ? 500 : playerAmount;
+        final int onlineMode = plugin.getProxy().getConfig().isOnlineMode() ? 1 : 0;
+        final String bungeecordVersion = plugin.getProxy().getVersion();
+        final int managedServers = plugin.getProxy().getServers().size();
+
+        final String javaVersion = System.getProperty("java.version");
+        final String osName = System.getProperty("os.name");
+        final String osArch = System.getProperty("os.arch");
+        final String osVersion = System.getProperty("os.version");
+        final int coreCount = Runtime.getRuntime().availableProcessors();
+
+        final JsonObject data = new JsonObject();
+
+        data.addProperty("serverUUID", serverUUID);
+
+        data.addProperty("playerAmount", playerAmount);
+        data.addProperty("managedServers", managedServers);
+        data.addProperty("onlineMode", onlineMode);
+        data.addProperty("bungeecordVersion", bungeecordVersion);
+
+        data.addProperty("javaVersion", javaVersion);
+        data.addProperty("osName", osName);
+        data.addProperty("osArch", osArch);
+        data.addProperty("osVersion", osVersion);
+        data.addProperty("coreCount", coreCount);
+
+        return data;
+    }
+
+    private void submitData() {
+        final JsonObject data = getServerData();
+
+        final JsonArray pluginData = new JsonArray();
+        for (final Object metrics : knownMetricsInstances) {
+            try {
+                final Object plugin = metrics.getClass().getMethod("getPluginData").invoke(metrics);
+                if (plugin instanceof JsonObject) {
+                    pluginData.add((JsonObject) plugin);
+                }
+            } catch (final NoSuchMethodException | IllegalAccessException | InvocationTargetException ignored) {
+            }
+        }
+
+        data.add("plugins", pluginData);
+
+        try {
+            sendData(plugin, data);
+        } catch (final Exception e) {
+            if (logFailedRequests) {
+                plugin.getLogger().log(Level.WARNING, "Could not submit plugin stats!", e);
+            }
+        }
+    }
+
+    private void loadConfig() throws IOException {
+        final Path configPath = plugin.getDataFolder().toPath().getParent().resolve("bStats");
+        configPath.toFile().mkdirs();
+        final File configFile = new File(configPath.toFile(), "config.yml");
+        if (!configFile.exists()) {
+            writeFile(configFile,
+                    "#bStats collects some data for plugin authors like how many servers are using their plugins.",
+                    "#To honor their work, you should not disable it.",
+                    "#This has nearly no effect on the server performance!",
+                    "#Check out https://bStats.org/ to learn more :)",
+                    "enabled: true",
+                    "serverUuid: \"" + UUID.randomUUID().toString() + "\"",
+                    "logFailedRequests: false",
+                    "logSentData: false",
+                    "logResponseStatusText: false");
+        }
+
+        final Configuration configuration = ConfigurationProvider.getProvider(YamlConfiguration.class).load(configFile);
+
+        enabled = configuration.getBoolean("enabled", true);
+        serverUUID = configuration.getString("serverUuid");
+        logFailedRequests = configuration.getBoolean("logFailedRequests", false);
+        logSentData = configuration.getBoolean("logSentData", false);
+        logResponseStatusText = configuration.getBoolean("logResponseStatusText", false);
+    }
+
+    private Class<?> getFirstBStatsClass() {
+        final Path configPath = plugin.getDataFolder().toPath().getParent().resolve("bStats");
+        configPath.toFile().mkdirs();
+        final File tempFile = new File(configPath.toFile(), "temp.txt");
+
+        try {
+            final String className = readFile(tempFile);
+            if (className != null) {
+                try {
+                    return Class.forName(className);
+                } catch (final ClassNotFoundException ignored) {
+                }
+            }
+            writeFile(tempFile, getClass().getName());
+            return getClass();
+        } catch (final IOException e) {
+            if (logFailedRequests) {
+                plugin.getLogger().log(Level.WARNING, "Failed to get first bStats class!", e);
+            }
+            return null;
+        }
+    }
+
+    private String readFile(final File file) throws IOException {
+        if (!file.exists()) {
+            return null;
+        }
+        try (
+                final FileReader fileReader = new FileReader(file);
+                final BufferedReader bufferedReader = new BufferedReader(fileReader);
+        ) {
+            return bufferedReader.readLine();
+        }
+    }
+
+    private void writeFile(final File file, final String... lines) throws IOException {
+        if (!file.exists()) {
+            file.createNewFile();
+        }
+        try (
+                final FileWriter fileWriter = new FileWriter(file);
+                final BufferedWriter bufferedWriter = new BufferedWriter(fileWriter)
+        ) {
+            for (final String line : lines) {
+                bufferedWriter.write(line);
+                bufferedWriter.newLine();
+            }
+        }
+    }
+
+    private static void sendData(final Plugin plugin, final JsonObject data) throws Exception {
+        if (data == null) {
+            throw new IllegalArgumentException("Data cannot be null");
+        }
+        if (logSentData) {
+            plugin.getLogger().info("Sending data to bStats: " + data.toString());
+        }
+
+        final HttpsURLConnection connection = (HttpsURLConnection) new URL(URL).openConnection();
+
+        final byte[] compressedData = compress(data.toString());
+
+        connection.setRequestMethod("POST");
+        connection.addRequestProperty("Accept", "application/json");
+        connection.addRequestProperty("Connection", "close");
+        connection.addRequestProperty("Content-Encoding", "gzip");
+        connection.addRequestProperty("Content-Length", String.valueOf(compressedData.length));
+        connection.setRequestProperty("Content-Type", "application/json");
+        connection.setRequestProperty("User-Agent", "MC-Server/" + B_STATS_VERSION);
+
+        connection.setDoOutput(true);
+        final DataOutputStream outputStream = new DataOutputStream(connection.getOutputStream());
+        outputStream.write(compressedData);
+        outputStream.flush();
+        outputStream.close();
+
+        if (logResponseStatusText) {
+            final InputStream inputStream = connection.getInputStream();
+            final BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
+
+            final StringBuilder builder = new StringBuilder();
+            String line;
+            while ((line = bufferedReader.readLine()) != null) {
+                builder.append(line);
+            }
+            bufferedReader.close();
+            plugin.getLogger().info("Sent data to bStats and received response: " + builder.toString());
+        } else {
+            connection.getInputStream().close();
+        }
+    }
+
+    private static byte[] compress(final String str) throws IOException {
+        if (str == null) {
+            return null;
+        }
+        final ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+        final GZIPOutputStream gzip = new GZIPOutputStream(outputStream);
+        gzip.write(str.getBytes(StandardCharsets.UTF_8));
+        gzip.close();
+        return outputStream.toByteArray();
+    }
+
+}

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/mysql/MySQL.java

@@ -0,0 +1,68 @@
+package eu.kennytv.maintenance.bungee.mysql;
+
+import com.zaxxer.hikari.HikariConfig;
+import com.zaxxer.hikari.HikariDataSource;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.function.Consumer;
+
+public final class MySQL {
+    private final HikariDataSource hikariDataSource;
+
+    // Excuse me and everything to do with the MySQL stuff, I have little to no idea of how to use databases
+    public MySQL(final String hostname, final int port, final String username, final String password, final String database) {
+        final HikariConfig hikariConfig = new HikariConfig();
+        hikariConfig.setMaximumPoolSize(10);
+        hikariConfig.addDataSourceProperty("serverName", hostname);
+        hikariConfig.addDataSourceProperty("user", username);
+        hikariConfig.addDataSourceProperty("password", password);
+        hikariConfig.addDataSourceProperty("url", "jdbc:mysql://" + hostname + ":" + port + "/" + database);
+        hikariConfig.setJdbcUrl("jdbc:mysql://" + hostname + ":" + port + "/" + database);
+        hikariConfig.setDataSourceClassName("com.mysql.jdbc.jdbc2.optional.MysqlDataSource");
+        hikariDataSource = new HikariDataSource(hikariConfig);
+    }
+
+    public void executeUpdate(final String query, final Consumer<Integer> callback, final Object... objects) {
+        try (final Connection connection = hikariDataSource.getConnection()) {
+            try (final PreparedStatement preparedStatement = connection.prepareStatement(query)) {
+                int current = 1;
+                for (final Object object : objects) {
+                    preparedStatement.setObject(current, object);
+                    current++;
+                }
+
+                callback.accept(preparedStatement.executeUpdate());
+            }
+        } catch (final SQLException e) {
+            System.out.println("Error while executing update method: " + query);
+            e.printStackTrace();
+        }
+    }
+
+    public void executeQuery(final String query, final Consumer<ResultSet> callback, final Object... objects) {
+        try (final Connection connection = hikariDataSource.getConnection()) {
+            try (final PreparedStatement preparedStatement = connection.prepareStatement(query)) {
+                int current = 1;
+                for (final Object object : objects) {
+                    preparedStatement.setObject(current, object);
+                    current++;
+                }
+
+                final ResultSet resultSet = preparedStatement.executeQuery();
+                callback.accept(resultSet);
+                resultSet.close();
+            }
+        } catch (final SQLException e) {
+            System.out.println("Error while executing query method: " + query);
+            e.printStackTrace();
+        }
+    }
+
+    public void executeUpdate(final String query, final Object... objects) {
+        executeUpdate(query, res -> {
+        }, objects);
+    }
+}

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/runnable/SingleMaintenanceRunnable.java

@@ -0,0 +1,33 @@
+package eu.kennytv.maintenance.bungee.runnable;
+
+import eu.kennytv.maintenance.bungee.MaintenanceBungeePlugin;
+import eu.kennytv.maintenance.core.MaintenanceModePlugin;
+import eu.kennytv.maintenance.core.Settings;
+import eu.kennytv.maintenance.core.runnable.MaintenanceRunnableBase;
+import net.md_5.bungee.api.config.ServerInfo;
+
+public final class SingleMaintenanceRunnable extends MaintenanceRunnableBase {
+    private final ServerInfo server;
+
+    public SingleMaintenanceRunnable(final MaintenanceModePlugin plugin, final Settings settings, final int minutes,
+                                     final boolean enable, final ServerInfo server) {
+        super(plugin, settings, minutes, enable);
+        this.server = server;
+    }
+
+    @Override
+    protected void finish() {
+        final MaintenanceBungeePlugin plugin = (MaintenanceBungeePlugin) this.plugin;
+        plugin.setMaintenanceToServer(server, enable);
+    }
+
+    @Override
+    protected String startMessageKey() {
+        return settings.getMessage("singleStarttimerBroadcast").replace("%TIME%", getTime()).replace("%SERVER%", server.getName());
+    }
+
+    @Override
+    protected String endMessageKey() {
+        return settings.getMessage("singleEndtimerBroadcast").replace("%TIME%", getTime()).replace("%SERVER%", server.getName());
+    }
+}

Maintenance-Bungee/src/main/java/eu/kennytv/maintenance/bungee/util/ProxiedSenderInfo.java

@@ -0,0 +1,45 @@
+package eu.kennytv.maintenance.bungee.util;
+
+import eu.kennytv.maintenance.core.util.SenderInfo;
+import net.md_5.bungee.api.CommandSender;
+import net.md_5.bungee.api.chat.TextComponent;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+
+import java.util.UUID;
+
+public final class ProxiedSenderInfo implements SenderInfo {
+    private final CommandSender sender;
+
+    public ProxiedSenderInfo(final CommandSender sender) {
+        this.sender = sender;
+    }
+
+    @Override
+    public UUID getUuid() {
+        return sender instanceof ProxiedPlayer ? ((ProxiedPlayer) sender).getUniqueId() : null;
+    }
+
+    @Override
+    public String getName() {
+        return sender.getName();
+    }
+
+    @Override
+    public boolean hasPermission(final String permission) {
+        return sender.hasPermission(permission);
+    }
+
+    @Override
+    public void sendMessage(final String message) {
+        sender.sendMessage(message);
+    }
+
+    @Override
+    public boolean isPlayer() {
+        return sender instanceof ProxiedPlayer;
+    }
+
+    public void sendMessage(final TextComponent textComponent) {
+        sender.sendMessage(textComponent);
+    }
+}

Maintenance-Bungee/src/main/resources/SpigotServers.yml

@@ -0,0 +1,6 @@
+# Enables maintenance on certain Spigot servers managed by your Bungee instance(s)
+# If it's enabled on a server with players on it, they will be forwarded to the fallback server (or kicked completely if not set correctly)
+maintenance-on:
+  #- SpigotServer1
+  #- AnotherServer
+fallback: hub

Maintenance-Bungee/src/main/resources/bungee-config.yml

@@ -0,0 +1,53 @@
+# MaintenanceBungee Plugin by KennyTV
+# Configs are cool, which means after the first plugin save, all comments will vanish
+# To still know what each field is for, check https://gist.github.com/KennyTV/a73f2aed1e278d4c927f9f6a3ef9fde2#file-bungee-config-yml
+
+# Enables maintenance-mode.
+enable-maintenance-mode: false
+
+# The message shown in the multiplayer server list motd.
+# If you put in multiple entries, one of them will be chosen randomly on every ping.
+pingmessages:
+  - "&cMaintenance mode!%NEWLINE%&6We will be back soon!"
+ #- "Another entry"
+
+# If set to true, the message below will be shown at the top right corner of the server in the serverlist,
+# where the playercount would normally be displayed.
+# If set to false, the normal playercount will be shown.
+# Alternatively you can use '%ONLINE%' and '%MAX% if you want to include the playercount in a custom message (e.g. '&cMaintenance &7%ONLINE%&8/&7%MAX%').
+enable-playercountmessage: true
+playercountmessage: "&4Maintenance"
+
+# Is shown when you move your mouse above the text at the top right corner of the server in the serverlist,
+# where the playercount would normally be displayed.
+playercounthovermessage: "&cCurrently under%NEWLINE%&cmaintenance"
+
+# Is shown when a player tries to join while maintenance is enabled and they don't have the permission to bypass it.
+kickmessage: "&cThe server is currently under maintenance!%NEWLINE%Try again later!"
+
+# If using the timer command: In what intervalls before enabling/disabling maintenance there will be a broadcast.
+timer-broadcast-for-seconds: [1200, 900, 600, 300, 120, 60, 30, 20, 10, 5, 4, 3, 2, 1]
+
+# If set to true, players with the maintenance.joinnotification permission will receive a message,
+# that a player tried to join the server while maintenance is enabled.
+send-join-notification: false
+
+# If set to true, the server icon will be changed to maintenance-icon.png in the Bungee main/base-folder.
+custom-maintenance-icon: false
+
+# Changes the language of command feedback/messages.
+# Currently available are: en (English), de (German), fr (French), pt (Portuguese)
+language: en
+
+# Only enable MySQL if you really know what you are doing.
+mysql:
+  use-mysql: false
+  host: host
+  port: 3306
+  database: database
+  username: username
+  password: password
+  # Requests to the database will only be made at least x seconds after the last request,
+  # so there won't be a request on every single ping on a server with many players.
+  # Set this to 0 to make a database request on every single ping.
+  update-interval: 15

Maintenance-Bungee/src/main/resources/bungee.yml

@@ -0,0 +1,6 @@
+name: ${project.name}
+version: ${project.version}
+main: eu.kennytv.maintenance.bungee.MaintenanceBungeeBase
+author: KennyTV
+softDepends: [ServerListPlus]
+website: https://www.spigotmc.org/resources/maintenancemode.40699/

Maintenance-Core/pom.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <artifactId>maintenance-base</artifactId>
+        <groupId>eu.kennytv</groupId>
+        <version>2.5.2</version>
+    </parent>
+
+    <artifactId>maintenance-core</artifactId>
+    <name>Maintenance-Core</name>
+
+    <dependencies>
+        <dependency>
+            <groupId>net.minecrell</groupId>
+            <artifactId>ServerListPlus</artifactId>
+            <version>3.4.8</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>eu.kennytv</groupId>
+            <artifactId>maintenance-api</artifactId>
+            <version>${parent.version}</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>
+</project>

Maintenance-Core/src/main/java/eu/kennytv/maintenance/core/MaintenanceModePlugin.java

@@ -0,0 +1,161 @@
+package eu.kennytv.maintenance.core;
+
+import eu.kennytv.maintenance.api.IMaintenance;
+import eu.kennytv.maintenance.core.hook.ServerListPlusHook;
+import eu.kennytv.maintenance.core.runnable.MaintenanceRunnable;
+import eu.kennytv.maintenance.core.util.ServerType;
+import eu.kennytv.maintenance.core.util.Version;
+
+import java.io.*;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLConnection;
+import java.util.logging.Logger;
+
+public abstract class MaintenanceModePlugin implements IMaintenance {
+    protected final Version version;
+    protected ServerListPlusHook serverListPlusHook;
+    protected MaintenanceRunnable runnable;
+    protected int taskId;
+    private final String prefix;
+    private final ServerType serverType;
+    private Version newestVersion;
+
+    protected MaintenanceModePlugin(final String prefix, final String version, final ServerType serverType) {
+        this.prefix = prefix;
+        this.version = new Version(version);
+        this.serverType = serverType;
+        checkNewestVersion();
+    }
+
+    @Override
+    public boolean isMaintenance() {
+        return getSettings().isMaintenance();
+    }
+
+    @Override
+    public String getVersion() {
+        return version.toString();
+    }
+
+    @Override
+    public boolean isTaskRunning() {
+        return taskId != 0 && runnable != null;
+    }
+
+    public void startMaintenanceRunnable(final int minutes, final boolean enable) {
+        runnable = new MaintenanceRunnable(this, (Settings) getSettings(), minutes, enable);
+        taskId = startMaintenanceRunnable(runnable);
+    }
+
+    public Version getNewestVersion() {
+        return newestVersion;
+    }
+
+    protected abstract int startMaintenanceRunnable(Runnable runnable);
+
+    public abstract void async(Runnable runnable);
+
+    public abstract void cancelTask();
+
+    public abstract File getPluginFile();
+
+    public abstract void broadcast(String message);
+
+    public MaintenanceRunnable getRunnable() {
+        return runnable;
+    }
+
+    public String getPrefix() {
+        return prefix;
+    }
+
+    public ServerType getServerType() {
+        return serverType;
+    }
+
+    public String formatedTimer() {
+        if (!isTaskRunning()) return "-";
+        final int preHours = runnable.getSecondsLeft() / 60;
+        final int minutes = preHours % 60;
+        final int seconds = runnable.getSecondsLeft() % 60;
+        return String.format("%02d:%02d:%02d", preHours / 60, minutes, seconds);
+    }
+
+    public void checkNewestVersion() {
+        try {
+            final HttpURLConnection c = (HttpURLConnection) new URL("https://api.spigotmc.org/legacy/update.php?resource=40699").openConnection();
+            final String newVersionString = new BufferedReader(new InputStreamReader(c.getInputStream())).readLine();
+
+            final Version newVersion = new Version(newVersionString);
+            final boolean available = !newVersion.equals(version);
+            if (available)
+                newestVersion = newVersion;
+        } catch (final Exception ignored) {
+        }
+    }
+
+    public boolean updateAvailable() {
+        checkNewestVersion();
+        return version.compareTo(newestVersion) == -1;
+    }
+
+    public String getUpdateMessage() {
+        if (version.compareTo(newestVersion) == -1) {
+            return "§cNewest version available: §aVersion " + newestVersion + "§c, you're on §a" + version;
+        } else if (version.compareTo(newestVersion) != 0) {
+            if (version.getTag().equalsIgnoreCase("snapshot")) {
+                return "§cYou're running a development version, please report bugs on the Discord server (https://kennytv.eu/discord) or the GitHub tracker (https://kennytv.eu/maintenance/issues)";
+            } else {
+                return "§cYou're running a version, that doesn't exist! §cN§ai§dc§ee§5!";
+            }
+        }
+        return "You have the latest version of the plugin installed.";
+    }
+
+    public boolean installUpdate() {
+        try {
+            URL url = null;
+            try {
+                url = new URL("https://github.com/KennyTV/Maintenance/releases/download/" + newestVersion + "/Maintenance.jar");
+            } catch (final MalformedURLException e) {
+                e.printStackTrace();
+            }
+
+            final URLConnection conn = url.openConnection();
+            final InputStream is = new BufferedInputStream(conn.getInputStream());
+            final OutputStream os = new BufferedOutputStream(new FileOutputStream("plugins/Maintenance.tmp"));
+            final byte[] chunk = new byte[1024];
+            int chunkSize;
+            while ((chunkSize = is.read(chunk)) != -1) {
+                os.write(chunk, 0, chunkSize);
+            }
+            os.close();
+            final File newfile = new File("plugins/Maintenance.tmp");
+            final long newlength = newfile.length();
+            if (newlength <= 10000) {
+                newfile.delete();
+                return false;
+            } else {
+                final FileInputStream is2 = new FileInputStream(new File("plugins/Maintenance.tmp"));
+                final OutputStream os2 = new BufferedOutputStream(new FileOutputStream(getPluginFile()));
+                final byte[] chunk2 = new byte[1024];
+                int chunkSize2;
+                while ((chunkSize2 = is2.read(chunk2)) != -1)
+                    os2.write(chunk2, 0, chunkSize2);
+                is2.close();
+                os2.close();
+
+                final File tmp = new File("plugins/Maintenance.tmp");
+                tmp.delete();
+                return true;
+            }
+        } catch (final IOException e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    public abstract Logger getLogger();
+}

Maintenance-Core/src/main/java/eu/kennytv/maintenance/core/Settings.java

@@ -0,0 +1,216 @@
+package eu.kennytv.maintenance.core;
+
+import eu.kennytv.maintenance.api.ISettings;
+
+import java.util.*;
+
+public abstract class Settings implements ISettings {
+    private static final Random RANDOM = new Random();
+    protected final Map<UUID, String> whitelistedPlayers = new HashMap<>();
+    private final MaintenanceModePlugin plugin;
+    protected boolean maintenance;
+    private Set<Integer> broadcastIntervalls;
+    private List<String> pingMessages;
+    private String playerCountMessage;
+    private String playerCountHoverMessage;
+    private String kickMessage;
+    protected String languageName;
+    private boolean customPlayerCountMessage;
+    private boolean customMaintenanceIcon;
+    private boolean joinNotifications;
+    private boolean debug;
+
+    protected Settings(final MaintenanceModePlugin plugin) {
+        this.plugin = plugin;
+    }
+
+    protected void loadSettings() {
+        updateConfig();
+
+        pingMessages = getConfigList("pingmessages");
+        maintenance = getConfigBoolean("enable-maintenance-mode");
+        customPlayerCountMessage = getConfigBoolean("enable-playercountmessage");
+        customMaintenanceIcon = getConfigBoolean("custom-maintenance-icon");
+        joinNotifications = getConfigBoolean("send-join-notification");
+        broadcastIntervalls = new HashSet<>(getConfigIntList("timer-broadcast-for-seconds"));
+        playerCountMessage = getColoredString(getConfigString("playercountmessage"));
+        playerCountHoverMessage = getColoredString(getConfigString("playercounthovermessage"));
+        kickMessage = getColoredString(getConfigString("kickmessage"));
+        languageName = getConfigString("language").toLowerCase();
+        debug = getConfigBoolean("debug");
+        if (customMaintenanceIcon) {
+            reloadMaintenanceIcon();
+        }
+
+        loadExtraSettings();
+        if (debug) {
+            plugin.getLogger().info("enable-maintenance-mode:" + maintenance);
+            plugin.getLogger().info("whitelistedPlayers:" + whitelistedPlayers);
+            plugin.getLogger().info("timer-broadcast-for-seconds:" + broadcastIntervalls);
+            plugin.getLogger().info("pingmessages:" + pingMessages);
+            plugin.getLogger().info("playercountmessage:" + playerCountMessage);
+            plugin.getLogger().info("playercounthovermessage:" + playerCountHoverMessage);
+            plugin.getLogger().info("kickmessage:" + kickMessage);
+            plugin.getLogger().info("language:" + languageName);
+            plugin.getLogger().info("enable-playercountmessage:" + customPlayerCountMessage);
+            plugin.getLogger().info("custom-maintenance-icon:" + customMaintenanceIcon);
+            plugin.getLogger().info("send-join-notification:" + joinNotifications);
+        }
+    }
+
+    private void updateConfig() {
+        boolean fileChanged = false;
+
+        // 2.3 pingmessage -> pingmessages
+        if (configContains("pingmessage")) {
+            final List<String> list = new ArrayList<>();
+            list.add(getConfigString("pingmessage"));
+            setToConfig("pingmessages", list);
+            setToConfig("pingmessage", null);
+            fileChanged = true;
+        }
+        // 2.4 enable-playercountmessage
+        if (!configContains("enable-playercountmessage")) {
+            setToConfig("enable-playercountmessage", true);
+            fileChanged = true;
+        }
+        // 2.4. timer-broadcasts-for-minutes -> timer-broadcast-for-seconds
+        if (configContains("timer-broadcasts-for-minutes") || !configContains("timer-broadcast-for-seconds")) {
+            setToConfig("timer-broadcast-for-seconds", Arrays.asList(1200, 900, 600, 300, 120, 60, 30, 20, 10, 5, 4, 3, 2, 1));
+            setToConfig("timer-broadcasts-for-minutes", null);
+            fileChanged = true;
+        }
+        // 2.5 language
+        if (!configContains("language")) {
+            setToConfig("language", "en");
+        }
+
+        if (updateExtraConfig() || fileChanged) {
+            saveConfig();
+        }
+    }
+
+    public boolean updateExtraConfig() {
+        return false;
+    }
+
+    public abstract void saveWhitelistedPlayers();
+
+    public abstract String getConfigString(String path);
+
+    public abstract String getMessage(String path);
+
+    public abstract boolean getConfigBoolean(String path);
+
+    public abstract List<Integer> getConfigIntList(String path);
+
+    public abstract List<String> getConfigList(String path);
+
+    public abstract void loadExtraSettings();
+
+    public abstract void setWhitelist(String uuid, String s);
+
+    public abstract void saveConfig();
+
+    public abstract void reloadConfigs();
+
+    public abstract void setToConfig(String path, Object var);
+
+    public abstract boolean configContains(String path);
+
+    public abstract String getColoredString(String s);
+
+    public List<String> getPingMessages() {
+        return pingMessages;
+    }
+
+    public Set<Integer> getBroadcastIntervalls() {
+        return broadcastIntervalls;
+    }
+
+    public String getPlayerCountMessage() {
+        return playerCountMessage;
+    }
+
+    public String getPlayerCountHoverMessage() {
+        return playerCountHoverMessage;
+    }
+
+    public String getKickMessage() {
+        return kickMessage;
+    }
+
+    public String getLanguage() {
+        return languageName;
+    }
+
+    public void setMaintenance(final boolean maintenance) {
+        this.maintenance = maintenance;
+    }
+
+    public String getRandomPingMessage() {
+        if (pingMessages.isEmpty()) return "";
+        final String s = pingMessages.size() > 1 ? pingMessages.get(RANDOM.nextInt(pingMessages.size())) : pingMessages.get(0);
+        return getColoredString(s.replace("%NEWLINE%", "\n").replace("%TIMER%", plugin.formatedTimer()));
+    }
+
+    public boolean hasCustomPlayerCountMessage() {
+        return customPlayerCountMessage;
+    }
+
+    @Override
+    public boolean isMaintenance() {
+        return maintenance;
+    }
+
+    @Override
+    public boolean isJoinNotifications() {
+        return joinNotifications;
+    }
+
+    @Override
+    public boolean hasCustomIcon() {
+        return customMaintenanceIcon;
+    }
+
+    @Override
+    public Map<UUID, String> getWhitelistedPlayers() {
+        return whitelistedPlayers;
+    }
+
+    @Override
+    public boolean removeWhitelistedPlayer(final UUID uuid) {
+        if (!whitelistedPlayers.containsKey(uuid)) return false;
+        whitelistedPlayers.remove(uuid);
+        setWhitelist(uuid.toString(), null);
+        saveWhitelistedPlayers();
+        return true;
+    }
+
+    @Deprecated
+    @Override
+    public boolean removeWhitelistedPlayer(final String name) {
+        final Map.Entry<UUID, String> entry = whitelistedPlayers.entrySet().stream().filter(e -> e.getValue().equalsIgnoreCase(name)).findAny().orElse(null);
+        if (entry == null) return false;
+
+        final UUID uuid = entry.getKey();
+        whitelistedPlayers.remove(uuid);
+        setWhitelist(uuid.toString(), null);
+        saveWhitelistedPlayers();
+        return true;
+    }
+
+    @Override
+    public boolean addWhitelistedPlayer(final UUID uuid, final String name) {
+        final boolean contains = !whitelistedPlayers.containsKey(uuid);
+        whitelistedPlayers.put(uuid, name);
+        setWhitelist(uuid.toString(), name);
+        saveWhitelistedPlayers();
+        return contains;
+    }
+
+    @Override
+    public boolean debugEnabled() {
+        return debug;
+    }
+}

Maintenance-Core/src/main/java/eu/kennytv/maintenance/core/command/CommandInfo.java

@@ -0,0 +1,21 @@
+package eu.kennytv.maintenance.core.command;
+
+import eu.kennytv.maintenance.core.util.SenderInfo;
+
+final class CommandInfo {
+    private final String[] messages;
+    private final String permission;
+
+    CommandInfo(final String permission, final String... messages) {
+        this.messages = messages;
+        this.permission = permission;
+    }
+
+    public boolean hasPermission(final SenderInfo sender) {
+        return sender.hasPermission("maintenance." + permission);
+    }
+
+    public String[] getMessages() {
+        return messages;
+    }
+}

Maintenance-Core/src/main/java/eu/kennytv/maintenance/core/command/MaintenanceCommand.java

@@ -0,0 +1,315 @@
+package eu.kennytv.maintenance.core.command;
+
+import eu.kennytv.maintenance.core.MaintenanceModePlugin;
+import eu.kennytv.maintenance.core.Settings;
+import eu.kennytv.maintenance.core.util.SenderInfo;
+import eu.kennytv.maintenance.core.util.ServerType;
+
+import java.util.*;
+
+public abstract class MaintenanceCommand {
+    protected final MaintenanceModePlugin plugin;
+    protected final Settings settings;
+    private final List<CommandInfo> commandInfos;
+    private final String name;
+
+    protected MaintenanceCommand(final MaintenanceModePlugin plugin, final Settings settings, final String name) {
+        this.plugin = plugin;
+        this.settings = settings;
+        this.name = name;
+        this.commandInfos = new ArrayList<>();
+        addCommandInfo("reload", "§6/maintenance reload §7(Reloads the config file, whitelist file and the server-icon)");
+        addCommandInfo("toggle", "§6/maintenance on §7(Enables maintenance mode)", "§6/maintenance off §7(Disables maintenance mode)");
+        if (plugin.getServerType() == ServerType.BUNGEE) {
+            addCommandInfo("toggleserver", "§6/maintenance on <server> §7(Enables maintenance mode on a specific proxied server)",
+                    "§6/maintenance off <server> §7(Disables maintenance mode on a specific proxied server)");
+        }
+        addCommandInfo("timer", "§6/maintenance starttimer <minutes> §7(After the given time in minutes, maintenance mode will be enabled)",
+                "§6/maintenance endtimer <minutes> §7(After the given time in minutes, maintenance mode will be disabled)",
+                "§6/maintenance timer abort §7(If running, the current timer will be aborted)");
+        if (plugin.getServerType() == ServerType.BUNGEE) {
+            addCommandInfo("servertimer", "§6/maintenance starttimer <server> <minutes> §7(After the given time in minutes, maintenance mode will be enabled on the given server)",
+                    "§6/maintenance endtimer <server> <minutes> §7(After the given time in minutes, maintenance mode will be disabled on the given server)",
+                    "§6/maintenance timer abort <server> §7(If running, the timer running for that server will be aborted)");
+        }
+        addCommandInfo("whitelist.list", "§6/maintenance whitelist §7(Shows all whitelisted players for the maintenance mode)");
+        addCommandInfo("whitelist.add", "§6/maintenance add <player> §7(Adds the player to the maintenance whitelist, so they can join the server even though maintenance is enabled)");
+        addCommandInfo("whitelist.remove", "§6/maintenance remove <player> §7(Removes the player from the maintenance whitelist)");
+        addCommandInfo("setmotd", "§6/maintenance setmotd <index> <1/2> <message> §7(Sets a motd for maintenance mode)", "§6/maintenance removemotd <index> §7(Removes a maintenance motd)");
+        addCommandInfo("motd", "§6/maintenance motd §7(Lists the currently set maintenance motds)");
+        addCommandInfo("update", "§6/maintenance update §7(Remotely downloads the newest version of the plugin onto your server)");
+    }
+
+    private void addCommandInfo(final String permission, final String... messages) {
+        commandInfos.add(new CommandInfo(permission, messages));
+    }
+
+    public void execute(final SenderInfo sender, final String[] args) {
+        if (checkPermission(sender, "command")) return;
+        if (args.length == 1) {
+            if (args[0].equalsIgnoreCase("on") || args[0].equalsIgnoreCase("off")) {
+                if (checkPermission(sender, "toggle")) return;
+
+                final boolean maintenance = args[0].equalsIgnoreCase("on");
+                if (maintenance == plugin.isMaintenance()) {
+                    sender.sendMessage(settings.getMessage(maintenance ? "alreadyEnabled" : "alreadyDisabled"));
+                    return;
+                }
+
+                plugin.setMaintenance(maintenance);
+            } else if (args[0].equalsIgnoreCase("reload")) {
+                if (checkPermission(sender, "reload")) return;
+                settings.reloadConfigs();
+                sender.sendMessage(settings.getMessage("reload"));
+            } else if (args[0].equalsIgnoreCase("update")) {
+                if (checkPermission(sender, "update")) return;
+                checkForUpdate(sender);
+            } else if (args[0].equals("forceupdate")) {
+                if (checkPermission(sender, "update")) return;
+                sender.sendMessage(settings.getMessage("updateDownloading"));
+                if (plugin.installUpdate())
+                    sender.sendMessage(settings.getMessage("updateFinished"));
+                else
+                    sender.sendMessage(settings.getMessage("updateFailed"));
+            } else if (args[0].equalsIgnoreCase("whitelist")) {
+                if (checkPermission(sender, "whitelist.list")) return;
+                final Map<UUID, String> players = settings.getWhitelistedPlayers();
+                if (players.isEmpty()) {
+                    sender.sendMessage(settings.getMessage("whitelistEmtpy"));
+                } else if (players.size() == 1 && players.containsKey(UUID.fromString("a8179ff3-c201-4a75-bdaa-9d14aca6f83f"))) {
+                    sender.sendMessage(settings.getMessage("whitelistEmptyDefault"));
+                } else {
+                    sender.sendMessage(settings.getMessage("whitelistedPlayers"));
+                    final String format = settings.getMessage("whitelistedPlayersFormat");
+                    players.forEach((key, value) -> sender.sendMessage(format.replace("%NAME%", value).replace("%UUID%", key.toString())));
+                    sender.sendMessage("");
+                }
+            } else if (args[0].equalsIgnoreCase("motd")) {
+                if (checkPermission(sender, "motd")) return;
+                sender.sendMessage(settings.getMessage("motdList"));
+                for (int i = 0; i < settings.getPingMessages().size(); i++) {
+                    sender.sendMessage("§b" + (i + 1) + "§8§m---------");
+                    for (final String motd : settings.getColoredString(settings.getPingMessages().get(i)).split("%NEWLINE%")) {
+                        sender.sendMessage(motd);
+                    }
+                }
+                sender.sendMessage("§8§m----------");
+            } else if (args[0].equalsIgnoreCase("status") && plugin.getServerType() == ServerType.BUNGEE) {
+                if (checkPermission(sender, "status")) return;
+                showMaintenanceStatus(sender);
+            } else
+                sendUsage(sender);
+        } else if (args.length == 2) {
+            if (args[0].equalsIgnoreCase("help")) {
+                if (!isNumeric(args[1])) {
+                    sender.sendMessage(settings.getMessage("helpUsage"));
+                    return;
+                }
+                sendUsage(sender, Integer.parseInt(args[1]));
+            } else if ((args[0].equalsIgnoreCase("on") || args[0].equalsIgnoreCase("off")) && plugin.getServerType() == ServerType.BUNGEE) {
+                if (checkPermission(sender, "toggleserver")) return;
+                handleToggleServerCommand(sender, args);
+            } else if (args[0].equalsIgnoreCase("endtimer")) {
+                if (checkPermission(sender, "timer")) return;
+                if (checkTimerArgs(sender, args[1], "endtimerUsage")) return;
+                if (!plugin.isMaintenance()) {
+                    sender.sendMessage(settings.getMessage("alreadyDisabled"));
+                    return;
+                }
+                plugin.startMaintenanceRunnable(Integer.parseInt(args[1]), false);
+                sender.sendMessage(settings.getMessage("endtimerStarted").replace("%TIME%", plugin.getRunnable().getTime()));
+            } else if (args[0].equalsIgnoreCase("starttimer")) {
+                if (checkPermission(sender, "timer")) return;
+                if (checkTimerArgs(sender, args[1], "starttimerUsage")) return;
+                if (plugin.isMaintenance()) {
+                    sender.sendMessage(settings.getMessage("alreadyEnabled"));
+                    return;
+                }
+
+                plugin.startMaintenanceRunnable(Integer.parseInt(args[1]), true);
+                sender.sendMessage(settings.getMessage("starttimerStarted").replace("%TIME%", plugin.getRunnable().getTime()));
+            } else if (args[0].equalsIgnoreCase("timer")) {
+                if (args[1].equalsIgnoreCase("abort") || args[1].equalsIgnoreCase("stop") || args[1].equalsIgnoreCase("cancel")) {
+                    if (checkPermission(sender, "timer")) return;
+                    if (!plugin.isTaskRunning()) {
+                        sender.sendMessage(settings.getMessage("timerNotRunning"));
+                        return;
+                    }
+
+                    plugin.cancelTask();
+                    sender.sendMessage(settings.getMessage("timerCancelled"));
+                } else
+                    sendUsage(sender);
+            } else if (args[0].equalsIgnoreCase("add")) {
+                if (checkPermission(sender, "whitelist.add")) return;
+                addPlayerToWhitelist(sender, args[1]);
+            } else if (args[0].equalsIgnoreCase("remove")) {
+                if (checkPermission(sender, "whitelist.remove")) return;
+                removePlayerFromWhitelist(sender, args[1]);
+            } else if (args[0].equalsIgnoreCase("removemotd")) {
+                if (checkPermission(sender, "setmotd")) return;
+                if (!isNumeric(args[1])) {
+                    sender.sendMessage(settings.getMessage("removeMotdUsage"));
+                    return;
+                }
+                if (settings.getPingMessages().size() < 2) {
+                    sender.sendMessage(settings.getMessage("removeMotdError"));
+                    return;
+                }
+
+                final int index = Integer.parseInt(args[1]);
+                if (index > settings.getPingMessages().size()) {
+                    sender.sendMessage(settings.getMessage("setMotdIndexError").replace("%MOTDS%", Integer.toString(settings.getPingMessages().size()))
+                            .replace("%NEWAMOUNT%", Integer.toString(settings.getPingMessages().size())));
+                    return;
+                }
+
+                settings.getPingMessages().remove(index - 1);
+                settings.setToConfig("pingmessages", settings.getPingMessages());
+                settings.saveConfig();
+                sender.sendMessage(settings.getMessage("removedMotd").replace("%INDEX%", args[1]));
+            } else
+                sendUsage(sender);
+        } else if (args.length == 3 && plugin.getServerType() == ServerType.BUNGEE) {
+            handleTimerServerCommands(sender, args);
+        } else if (args.length > 3 && args[0].equalsIgnoreCase("setmotd")) {
+            if (checkPermission(sender, "setmotd")) return;
+            if (!isNumeric(args[1])) {
+                sender.sendMessage(settings.getMessage("setMotdUsage"));
+                return;
+            }
+
+            final int index = Integer.parseInt(args[1]);
+            if (index < 1 || index > settings.getPingMessages().size() + 1) {
+                sender.sendMessage(settings.getMessage("setMotdIndexError").replace("%MOTDS%", Integer.toString(settings.getPingMessages().size()))
+                        .replace("%NEWAMOUNT%", Integer.toString(settings.getPingMessages().size() + 1)));
+                return;
+            }
+
+            if (!isNumeric(args[2])) {
+                sender.sendMessage(settings.getMessage("setMotdLineError"));
+                return;
+            }
+
+            final int line = Integer.parseInt(args[2]);
+            if (line != 1 && line != 2) {
+                sender.sendMessage(settings.getMessage("setMotdLineError"));
+                return;
+            }
+
+            final String message = String.join(" ", Arrays.copyOfRange(args, 3, args.length));
+            final String oldMessage = index > settings.getPingMessages().size() ? "" : settings.getPingMessages().get(index - 1);
+            final String newMessage;
+            if (line == 1)
+                newMessage = oldMessage.contains("%NEWLINE%") ?
+                        message + "%NEWLINE%" + oldMessage.split("%NEWLINE%", 2)[1] : message;
+            else
+                newMessage = oldMessage.contains("%NEWLINE%") ?
+                        oldMessage.split("%NEWLINE%", 2)[0] + "%NEWLINE%" + message : oldMessage + "%NEWLINE%" + message;
+
+            if (index > settings.getPingMessages().size())
+                settings.getPingMessages().add(newMessage);
+            else
+                settings.getPingMessages().set(index - 1, newMessage);
+            settings.setToConfig("pingmessages", settings.getPingMessages());
+            settings.saveConfig();
+            sender.sendMessage(settings.getMessage("setMotd").replace("%LINE%", args[2]).replace("%INDEX%", args[1])
+                    .replace("%MOTD%", "§f" + settings.getColoredString(message)));
+        } else
+            sendUsage(sender);
+    }
+
+    protected void sendUsage(final SenderInfo sender) {
+        sendUsage(sender, 1);
+    }
+
+    private static final int COMMANDS_PER_PAGE = 8;
+
+    protected void sendUsage(final SenderInfo sender, final int page) {
+        final List<String> commands = new ArrayList<>();
+        commandInfos.stream().filter(cmd -> cmd.hasPermission(sender)).forEach(cmd -> {
+            for (final String message : cmd.getMessages()) {
+                commands.add(message);
+            }
+        });
+        if ((page - 1) * COMMANDS_PER_PAGE > commands.size()) {
+            sender.sendMessage(settings.getMessage("helpPageNotFound"));
+            return;
+        }
+
+        final List<String> filteredCommands;
+        if (page * COMMANDS_PER_PAGE >= commands.size())
+            filteredCommands = commands.subList((page - 1) * COMMANDS_PER_PAGE, commands.size());
+        else
+            filteredCommands = commands.subList((page - 1) * COMMANDS_PER_PAGE, page * COMMANDS_PER_PAGE);
+
+        sender.sendMessage("");
+        sender.sendMessage("§8========[ §e" + name + " §8| §eVersion: §e" + plugin.getVersion() + " §8]========");
+        filteredCommands.forEach(sender::sendMessage);
+        if (page * 10 < commands.size())
+            sender.sendMessage("§7Use §b/maintenance help " + (page + 1) + " §7to get to the next help window.");
+        else
+            sender.sendMessage("§8× §7Created by §bKennyTV");
+        sender.sendMessage("§8========[ §e" + name + " §8| §e" + page + "/" + ((commands.size() + getDivide(commands.size())) / COMMANDS_PER_PAGE) + " §8]========");
+        sender.sendMessage("");
+    }
+
+    private int getDivide(final int size) {
+        final int commandSize = size % COMMANDS_PER_PAGE;
+        return commandSize > 0 ? COMMANDS_PER_PAGE - commandSize : 0;
+    }
+
+    protected boolean checkTimerArgs(final SenderInfo sender, final String time, final String usageKey) {
+        if (!isNumeric(time)) {
+            sender.sendMessage(settings.getMessage(usageKey));
+            return true;
+        }
+        if (plugin.isTaskRunning()) {
+            sender.sendMessage(settings.getMessage("timerAlreadyRunning"));
+            return true;
+        }
+
+        final int minutes = Integer.parseInt(time);
+        if (minutes > 40320) {
+            sender.sendMessage(settings.getMessage("timerTooLong"));
+            return true;
+        }
+        if (minutes < 1) {
+            sender.sendMessage("§8§o[KennyTV whispers to you] §c§oThink about running a timer for a negative amount of minutes. Doesn't work §lthat §c§owell.");
+            return true;
+        }
+        return false;
+    }
+
+    protected boolean checkPermission(final SenderInfo sender, final String permission) {
+        if (!sender.hasPermission("maintenance." + permission)) {
+            sender.sendMessage(settings.getMessage("noPermission"));
+            return true;
+        }
+        return false;
+    }
+
+    protected boolean isNumeric(final String string) {
+        try {
+            Integer.parseInt(string);
+        } catch (final NumberFormatException nfe) {
+            return false;
+        }
+        return true;
+    }
+
+    protected abstract void addPlayerToWhitelist(SenderInfo sender, String name);
+
+    protected abstract void removePlayerFromWhitelist(SenderInfo sender, String name);
+
+    protected abstract void checkForUpdate(SenderInfo sender);
+
+    protected void showMaintenanceStatus(SenderInfo sender) {
+    }
+
+    protected void handleToggleServerCommand(SenderInfo sender, String[] args) {
+    }
+
+    protected void handleTimerServerCommands(SenderInfo sender, String[] args) {
+    }
+}

Maintenance-Core/src/main/java/eu/kennytv/maintenance/core/hook/ServerListPlusHook.java

@@ -0,0 +1,15 @@
+package eu.kennytv.maintenance.core.hook;
+
+import net.minecrell.serverlistplus.core.ServerListPlusCore;
+
+public final class ServerListPlusHook {
+    private final ServerListPlusCore serverListPlusCore;
+
+    public ServerListPlusHook(final ServerListPlusCore serverListPlusCore) {
+        this.serverListPlusCore = serverListPlusCore;
+    }
+
+    public void setEnabled(final boolean enable) {
+        serverListPlusCore.getProfiles().setEnabled(enable);
+    }
+}

Maintenance-Core/src/main/java/eu/kennytv/maintenance/core/listener/IPingListener.java

@@ -0,0 +1,6 @@
+package eu.kennytv.maintenance.core.listener;
+
+public interface IPingListener {
+
+    boolean loadIcon();
+}

Maintenance-Core/src/main/java/eu/kennytv/maintenance/core/runnable/MaintenanceRunnable.java

@@ -0,0 +1,26 @@
+package eu.kennytv.maintenance.core.runnable;
+
+import eu.kennytv.maintenance.core.MaintenanceModePlugin;
+import eu.kennytv.maintenance.core.Settings;
+
+public final class MaintenanceRunnable extends MaintenanceRunnableBase {
+
+    public MaintenanceRunnable(final MaintenanceModePlugin plugin, final Settings settings, final int minutes, final boolean enable) {
+        super(plugin, settings, minutes, enable);
+    }
+
+    @Override
+    protected void finish() {
+        plugin.setMaintenance(enable);
+    }
+
+    @Override
+    protected String startMessageKey() {
+        return settings.getMessage("starttimerBroadcast").replace("%TIME%", getTime());
+    }
+
+    @Override
+    protected String endMessageKey() {
+        return settings.getMessage("endtimerBroadcast").replace("%TIME%", getTime());
+    }
+}

Maintenance-Core/src/main/java/eu/kennytv/maintenance/core/runnable/MaintenanceRunnableBase.java

@@ -0,0 +1,61 @@
+package eu.kennytv.maintenance.core.runnable;
+
+import eu.kennytv.maintenance.core.MaintenanceModePlugin;
+import eu.kennytv.maintenance.core.Settings;
+
+public abstract class MaintenanceRunnableBase implements Runnable {
+    protected final MaintenanceModePlugin plugin;
+    protected final Settings settings;
+    protected final boolean enable;
+    protected int seconds;
+
+    protected MaintenanceRunnableBase(final MaintenanceModePlugin plugin, final Settings settings, final int minutes, final boolean enable) {
+        this.plugin = plugin;
+        this.settings = settings;
+        this.seconds = minutes * 60;
+        this.enable = enable;
+    }
+
+    @Override
+    public void run() {
+        if (seconds == 0) {
+            finish();
+        } else if (settings.getBroadcastIntervalls().contains(seconds)) {
+            if (enable)
+                plugin.broadcast(startMessageKey());
+            else
+                plugin.broadcast(endMessageKey());
+        }
+
+        seconds--;
+    }
+
+    protected abstract void finish();
+
+    protected abstract String startMessageKey();
+
+    protected abstract String endMessageKey();
+
+    public String getTime() {
+        final int preHours = this.seconds / 60;
+        final int minutes = preHours % 60;
+        final int seconds = this.seconds % 60;
+
+        final StringBuilder buider = new StringBuilder();
+        append(buider, "hour", preHours / 60);
+        append(buider, "minute", minutes);
+        append(buider, "second", seconds);
+        return buider.toString();
+    }
+
+    private void append(final StringBuilder builder, final String timeUnit, final int time) {
+        if (time == 0) return;
+        if (builder.length() != 0)
+            builder.append(" ");
+        builder.append(time).append(" ").append(settings.getMessage(time == 1 ? timeUnit : timeUnit + "s"));
+    }
+
+    public int getSecondsLeft() {
+        return seconds;
+    }
+}

Maintenance-Core/src/main/java/eu/kennytv/maintenance/core/util/SenderInfo.java

@@ -0,0 +1,16 @@
+package eu.kennytv.maintenance.core.util;
+
+import java.util.UUID;
+
+public interface SenderInfo {
+
+    UUID getUuid();
+
+    String getName();
+
+    boolean hasPermission(String permission);
+
+    void sendMessage(String message);
+
+    boolean isPlayer();
+}

Maintenance-Core/src/main/java/eu/kennytv/maintenance/core/util/ServerType.java

@@ -0,0 +1,7 @@
+package eu.kennytv.maintenance.core.util;
+
+public enum ServerType {
+
+    BUNGEE,
+    SPIGOT
+}

Maintenance-Core/src/main/java/eu/kennytv/maintenance/core/util/Version.java

@@ -0,0 +1,76 @@
+package eu.kennytv.maintenance.core.util;
+
+public final class Version implements Comparable<Version> {
+    private final int[] parts = new int[3];
+    private final String version;
+    private final String tag;
+
+    public Version(final String version) {
+        if (version == null || version.isEmpty()) {
+            this.version = "";
+            tag = "";
+            System.out.println("Unknown Maintenance version detected!");
+            return;
+        }
+        final String[] split = version.split("-", 2)[0].split("\\.");
+        for (int i = 0; i < split.length; i++) {
+            if (!isNumeric(split[i])) {
+                this.version = "";
+                tag = "";
+                System.out.println("Unknown Maintenance version detected!");
+                return;
+            }
+            parts[i] = Integer.parseInt(split[i]);
+        }
+
+        this.version = version;
+        tag = version.contains("-") ? version.split("-", 2)[1] : "";
+    }
+
+    /**
+     * Compare two versions
+     *
+     * @param version version to compare to
+     * @return 0 if they are the same, 1 if this version (not the one to compare to) is newer, -1 if older
+     */
+    @Override
+    public int compareTo(final Version version) {
+        if (version == null || version.toString() == null) return 0;
+        final int max = Math.max(this.parts.length, version.parts.length);
+        for (int i = 0; i < max; i += 1) {
+            final int partA = i < this.parts.length ? this.parts[i] : 0;
+            final int partB = i < version.parts.length ? version.parts[i] : 0;
+            if (partA < partB) return -1;
+            if (partA > partB) return 1;
+        }
+
+        if (this.tag.isEmpty() && !version.tag.isEmpty())
+            return 1;
+        if (!this.tag.isEmpty() && version.tag.isEmpty())
+            return -1;
+        return 0;
+    }
+
+    public String getTag() {
+        return tag;
+    }
+
+    @Override
+    public String toString() {
+        return version;
+    }
+
+    @Override
+    public boolean equals(final Object o) {
+        return o instanceof Version && o == this || version.equals(o.toString());
+    }
+
+    private boolean isNumeric(final String string) {
+        try {
+            Integer.parseInt(string);
+        } catch (final NumberFormatException nfe) {
+            return false;
+        }
+        return true;
+    }
+}

Maintenance-Core/src/main/resources/LICENSE.txt

@@ -1,4 +1,4 @@
-                    GNU GENERAL PUBLIC LICENSE
+GNU GENERAL PUBLIC LICENSE
                        Version 3, 29 June 2007
 
  Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>

Maintenance-Core/src/main/resources/WhitelistedPlayers.yml

@@ -0,0 +1 @@
+a8179ff3-c201-4a75-bdaa-9d14aca6f83f: KennyTV

Maintenance-Core/src/main/resources/language-de.yml

@@ -0,0 +1,65 @@
+# Maintenance Plugin by KennyTV
+# Wörter zwischen dem '%'-Zeichen nur entfernen, wenn Du wirklich weißt, warum Du sie entfernen willst
+
+noPermission: "&cDu hast nicht die erforderliche Berechtigung für diesen Befehl."
+maintenanceActivated: "&8[&eMaintenance&8] &6Der Wartungsmodus ist nun aktiviert."
+maintenanceDeactivated: "&8[&eMaintenance&8] &6Der Wartungsmodus ist nun deaktiviert."
+alreadyEnabled: "&8[&eMaintenance&8] &cDer Wartungsmodus ist bereits aktiviert!"
+alreadyDisabled: "&8[&eMaintenance&8] &cDer Wartungsmodus ist bereits deaktiviert!"
+helpUsage: "&8[&eMaintenance&8] &c/maintenance help <Seite>"
+helpPageNotFound: "&8[&eMaintenance&8] &cEs gibt keine Seite mit dieser Nummer!"
+endtimerBroadcast: "&8[&eMaintenance&8] &7Der Wartungsmodus wird deaktiviert in: &6%TIME%&7."
+endtimerStarted: "&8[&eMaintenance&8] &aGestarteter Timer: &7Der Wartungsmodus wird deaktiviert in: &6%TIME%&7."
+endtimerUsage: "&8[&eMaintenance&8] &c/maintenance endtimer <Minuten>"
+starttimerBroadcast: "&8[&eMaintenance&8] &7Der Wartungsmodus wird aktiviert in: &6%TIME%&7."
+starttimerStarted: "&8[&eMaintenance&8] &aGestarteter Timer: &7Der Wartungsmodus wird aktiviert in: &6%TIME%&7"
+starttimerUsage: "&8[&eMaintenance&8] &c/maintenance starttimer <Minuten>"
+timerAlreadyRunning: "&8[&eMaintenance&8] &cMomentan läuft bereits ein Timer!"
+timerNotRunning: "&8[&eMaintenance&8] &cMomentan läuft kein Timer."
+timerCancelled: "&8[&eMaintenance&8] &cDer laufende Timer wurde beendet."
+timerTooLong: "&8[&eMaintenance&8] &cDie angegebene Nummer muss kleiner als 40320 sein (= 28 Tage)!"
+joinNotification: "&8[&eMaintenance&8] &e%PLAYER% &chat versucht den Server beizutreten."
+motdList: "&8[&eMaintenance&8] &7Liste der Maintenance MOTDs:"
+reload: "&8[&eMaintenance&8] &aConfig, WhitelistedPlayers, Language Datei und Maintenance Icon wurden neugeladen."
+removedMotd: "&8[&eMaintenance&8] &aDie %INDEX%. Maintenance MOTD wurde entfernt."
+removeMotdError: "&8[&eMaintenance&8] &cDu hast nur eine Maintenance MOTD, daher kannst du auch keine entfernen!"
+removeMotdUsage: "&8[&eMaintenance&8] &c/maintenance removemotd <Index>"
+setMotd: "&8[&eMaintenance&8] &aDie %LINE%. Zeile der %INDEX%. Maintenance MOTD wurde geändert zu: %MOTD%"
+setMotdUsage: "&8[&eMaintenance&8] &c/maintenance setmotd <Index> <1/2> <Text>"
+setMotdIndexError: "&8[&eMaintenance&8] &cMomentan gibt es %MOTDS% MOTDs, du musst also eine Zahl zwischen 1 and %NEWAMOUNT% wählen."
+setMotdLineError: "&8[&eMaintenance&8] &cDas zweite Argument muss die Zeilennummer sein (1 oder 2)!"
+updateDownloading: "&8[&eMaintenance&8] &c&lUpdate wird heruntergeladen..."
+updateFailed: "&8[&eMaintenance&8] &4&lUpdate fehlgeschlagen!"
+updateFinished: "&8[&eMaintenance&8] &a&lDas Update war erfolgreich! Um Probleme mit Timern zu vermeiden und das Update zu vervollständigen, musst du den Server neustarten!"
+whitelistedPlayers: "&8[&eMaintenance&8] &6Spieler in der Maintenance Whitelist:"
+whitelistedPlayersFormat: "&8- &e%NAME% &8(&7%UUID%&8)"
+whitelistAdded: "&8[&eMaintenance&8] &b%PLAYER% &awurde zur Maintenance Whitelist hinzugefügt!"
+whitelistAlreadyAdded: "&8[&eMaintenance&8] &b%PLAYER% &cist bereits in der Maintenance Whitelist!"
+whitelistRemoved: "&8[&eMaintenance&8] &b%PLAYER% &awurde von der Maintenance Whitelist entfernt!"
+whitelistNotFound: "&8[&eMaintenance&8] &cDieser Spieler ist nicht in der Maintenance Whitelist!"
+whitelistEmtpy: "&8[&eMaintenance&8] &cDie Maintenance Whitelist ist leer! Nutze '/maintenance add <Spieler>', um jemanden hinzuzufügen!"
+whitelistEmptyDefault: "&8[&eMaintenance&8] &cNutze '/maintenance add <player>', um jemanden hinzuzufügen. Ansonsten kannst auch die UUID des Spielers in die WhitelistedPlayers.yml einsetzen, wie es im dortigen Beispiel schon drinsteht!"
+playerNotFound: "&8[&eMaintenance&8] &cBisher hat kein Spieler mit diesem Namen jemals auf diesem Server gespielt."
+playerNotOnline: "&8[&eMaintenance&8] &cEs ist momentan kein Spieler mit diesem Namen online."
+
+second: "Sekunde"
+seconds: "Sekunden"
+minute: "Minute"
+minutes: "Minuten"
+hour: "Stunde"
+hours: "Stunden"
+
+# Nachrichten für den Bungee Teil des Plugins, einfach ignorieren, falls das Plugin auf Spigot verwendet wird
+serverNotFound: "&8[&eMaintenance&8] &cEs wurde kein Server mit diesem Namen gefunden!"
+singleEndtimerBroadcast: "&8[&eMaintenance&8] &7Der Wartungsmodus auf Server %SERVER% wird deaktiviert in: &6%TIME%&7."
+singleEndtimerUsage: "&8[&eMaintenance&8] &c/maintenance endtimer <Server> <Minuten>"
+singleStarttimerBroadcast: "&8[&eMaintenance&8] &7Der Wartungsmodus auf Server %SERVER% wird aktiviert in: &6%TIME%&7."
+singleStarttimerUsage: "&8[&eMaintenance&8] &c/maintenance starttimer <Server> <Minuten>"
+singleMaintenanceKick: "&8[&eMaintenance&8] &cDer Server %SERVER% befindet sich momentan im Wartungsmodus! Probier es später nochmal!"
+singleMaintenanceKickComplete: "&cDer Server %SERVER% befindet sich in Wartung!%NEWLINE%&cDu kannst versuchen zu rejoinen, um andere Server zu betreten!"
+singleMaintenanceActivated: "&8[&eMaintenance&8] &6Der Wartungsmodus wurde auf &e%SERVER% &6aktiviert."
+singleMaintenanceDeactivated: "&8[&eMaintenance&8] &6Der Wartungsmodus wurde auf &e%SERVER% &6deaktiviert."
+singleServerAlreadyEnabled: "&8[&eMaintenance&8] &cDer Wartungsmodus ist bereits an auf &e%SERVER%&c!"
+singleServerAlreadyDisabled: "&8[&eMaintenance&8] &cDer Wartungsmodus ist bereits aus auf &e%SERVER%&c!"
+singleServerMaintenanceList: "&8[&eMaintenance&8] &7Unterserverserver, die im Wartungsmodus sind:"
+singleServerMaintenanceListEmpty: "&8[&eMaintenance&8] &7Es befindet sich momentan kein Unterserver im Wartungsmodus."

Maintenance-Core/src/main/resources/language-en.yml

@@ -0,0 +1,65 @@
+# Maintenance Plugin by KennyTV
+# Don't remove words inbetween the '%' if you don't exactly know why you're doing it
+
+noPermission: "&cYou do not have the permission to execute that command."
+maintenanceActivated: "&8[&eMaintenance&8] &6Maintenance mode is now activated."
+maintenanceDeactivated: "&8[&eMaintenance&8] &6Maintenance mode is now deactivated."
+alreadyEnabled: "&8[&eMaintenance&8] &cMaintenance is already enabled!"
+alreadyDisabled: "&8[&eMaintenance&8] &cMaintenance is already disabled!"
+helpUsage: "&8[&eMaintenance&8] &c/maintenance help <page>"
+helpPageNotFound: "&8[&eMaintenance&8] &cThere is no page with that number!"
+endtimerBroadcast: "&8[&eMaintenance&8] &7Maintenance mode will be disabled in &6%TIME%&7."
+endtimerStarted: "&8[&eMaintenance&8] &aStarted timer: &7Maintenance mode will be deactivated in &6%TIME%&7."
+endtimerUsage: "&8[&eMaintenance&8] &c/maintenance endtimer <minutes>"
+starttimerBroadcast: "&8[&eMaintenance&8] &7Maintenance mode will be enabled in &6%TIME%&7."
+starttimerStarted: "&8[&eMaintenance&8] &aStarted timer: &7Maintenance mode will be activated in &6%TIME%&7."
+starttimerUsage: "&8[&eMaintenance&8] &c/maintenance starttimer <minutes>"
+timerAlreadyRunning: "&8[&eMaintenance&8] &cThere's already a timer scheduled!"
+timerNotRunning: "&8[&eMaintenance&8] &cThere's currently no running timer."
+timerCancelled: "&8[&eMaintenance&8] &cThe current timer has been disabled."
+timerTooLong: "&8[&eMaintenance&8] &cThe number has to be less than 40320 (28 days)!"
+joinNotification: "&8[&eMaintenance&8] &e%PLAYER% &ctried to join the server."
+motdList: "&8[&eMaintenance&8] &7List of your maintenance motds:"
+reload: "&8[&eMaintenance&8] &aReloaded config, whitelistedplayers, language file and the maintenance icon."
+removedMotd: "&8[&eMaintenance&8] &aRemoved motd number %INDEX%."
+removeMotdError: "&8[&eMaintenance&8] &cYou only have one motd, so you can't remove any!"
+removeMotdUsage: "&8[&eMaintenance&8] &c/maintenance removemotd <index>"
+setMotd: "&8[&eMaintenance&8] &aSet line %LINE% of the %INDEX%. maintenance motd to %MOTD%"
+setMotdUsage: "&8[&eMaintenance&8] &c/maintenance setmotd <index> <1/2> <message>"
+setMotdIndexError: "&8[&eMaintenance&8] &cYou currently have %MOTDS% motds, so you have to pick a number between 1 and %NEWAMOUNT%."
+setMotdLineError: "&8[&eMaintenance&8] &cThe second argument has to be the line number (1 or 2)!"
+updateDownloading: "&8[&eMaintenance&8] &c&lDownloading update..."
+updateFailed: "&8[&eMaintenance&8] &4&lUpdate failed!"
+updateFinished: "&8[&eMaintenance&8] &a&lThe update was successful! To prevent issues with tasks and to complete the update, you have to restart the server!"
+whitelistedPlayers: "&8[&eMaintenance&8] &6Whitelisted players for maintenance:"
+whitelistedPlayersFormat: "&8- &e%NAME% &8(&7%UUID%&8)"
+whitelistAdded: "&8[&eMaintenance&8] &aAdded &b%PLAYER% &ato the maintenance whitelist!"
+whitelistAlreadyAdded: "&8[&eMaintenance&8] &b%PLAYER% &calready is in the maintenance whitelist!"
+whitelistRemoved: "&8[&eMaintenance&8] &aRemoved &b%PLAYER% &afrom the maintenance whitelist!"
+whitelistNotFound: "&8[&eMaintenance&8] &cThis player is not in the maintenance whitelist!"
+whitelistEmtpy: "&8[&eMaintenance&8] &cThe maintenance whitelist is empty! Use '/maintenance add <player>' to add someone!"
+whitelistEmptyDefault: "&8[&eMaintenance&8] &cUse '/maintenance add <player>' to add someone. Alternatively, you can add the uuid of a player to the WhitelistedPlayers.yml as seen in the example in the file!"
+playerNotFound: "&8[&eMaintenance&8] &cNo player with this name has played on this server before."
+playerNotOnline: "&8[&eMaintenance&8] &cThere's no player online with that name."
+
+second: "second"
+seconds: "seconds"
+minute: "minute"
+minutes: "minutes"
+hour: "hour"
+hours: "hours"
+
+# Some messages for the Bungee part, just ignore them if you use the plugin on Spigot
+serverNotFound: "&8[&eMaintenance&8] &cNo server with this name is registered on the proxy!"
+singleEndtimerBroadcast: "&8[&eMaintenance&8] &7Maintenance mode on server %SERVER% will be disabled in &6%TIME%&7."
+singleEndtimerUsage: "&8[&eMaintenance&8] &c/maintenance endtimer <server> <minutes>"
+singleStarttimerBroadcast: "&8[&eMaintenance&8] &7Maintenance mode on server %SERVER% will be enabled in &6%TIME%&7."
+singleStarttimerUsage: "&8[&eMaintenance&8] &c/maintenance starttimer <server> <minutes>"
+singleMaintenanceKick: "&8[&eMaintenance&8] &cThe server %SERVER% is currently under maintenance! Try again later!"
+singleMaintenanceKickComplete: "&cThe server %SERVER% is under maintenance!%NEWLINE%&cYou may try to rejoin to go onto another server!"
+singleMaintenanceActivated: "&8[&eMaintenance&8] &6Maintenance mode is now activated on server &e%SERVER%&6."
+singleMaintenanceDeactivated: "&8[&eMaintenance&8] &6Maintenance mode is now deactivated on server &e%SERVER%&6."
+singleServerAlreadyEnabled: "&8[&eMaintenance&8] &cMaintenance is already enabled on server &e%SERVER%&c!"
+singleServerAlreadyDisabled: "&8[&eMaintenance&8] &cMaintenance is already disabled on server &e%SERVER%&c!"
+singleServerMaintenanceList: "&8[&eMaintenance&8] &7Proxied servers, that have maintenance enabled:"
+singleServerMaintenanceListEmpty: "&8[&eMaintenance&8] &7There are no proxied servers that are under maintenance."

Maintenance-Core/src/main/resources/language-fr.yml

@@ -0,0 +1,65 @@
+# Maintenance Plugin par KennyTV
+# Ne supprime pas des mots entre les '%' si tu ne sait pas pourqoi exactement
+
+noPermission: "&cVous n'avez pas la permission d'exécuter cette commande."
+maintenanceActivated: "&8[&eMaintenance&8] &6Le mode maintenance est maintenant activé."
+maintenanceDeactivated: "&8[&eMaintenance&8] &6Le mode maintenance est maintenant désactivé."
+alreadyEnabled: "&8[&eMaintenance&8] &cLa maintenance est déjà activée!"
+alreadyDisabled: "&8[&eMaintenance&8] &cLa maintenance est déjà désactivée!"
+helpUsage: "&8[&eMaintenance&8] &c/maintenance help <page>"
+helpPageNotFound: "&8[&eMaintenance&8] &cIl n'y a pas cette page!"
+endtimerBroadcast: "&8[&eMaintenance&8] &7Le mode maintenance sera désactivé dans &6%TIME%&7."
+endtimerStarted: "&8[&eMaintenance&8] &aminuterie: &7Le mode maintenance sera désactivé dans &6%TIME%&7."
+endtimerUsage: "&8[&eMaintenance&8] &c/maintenance endtimer <minutes>"
+starttimerBroadcast: "&8[&eMaintenance&8] &7MLe mode de maintenance sera activé dans &6%TIME%&7."
+starttimerStarted: "&8[&eMaintenance&8] &aminuterie: &7Le mode maintenance sera activé dans &6%TIME%&7."
+starttimerUsage: "&8[&eMaintenance&8] &c/maintenance starttimer <minutes>"
+timerAlreadyRunning: "&8[&eMaintenance&8] &cIl y a déjà un horaire prévu!"
+timerNotRunning: "&8[&eMaintenance&8] &cIl n'y a actuellement aucune maintenance prévue."
+timerCancelled: "&8[&eMaintenance&8] &cLa minuterie actuelle a été désactivée."
+timerTooLong: "&8[&eMaintenance&8] &cLe nombre doit être inférieur à 40320 (28 jours)!"
+joinNotification: "&8[&eMaintenance&8] &e%PLAYER% &ca essayé de rejoindre le serveur."
+motdList: "&8[&eMaintenance&8] &7Liste de vos motd pour la maintenance:"
+reload: "&8[&eMaintenance&8] &afichier config, liste blanche (whitelist) joueurs, fichier de langue et l'icône de maintenance, recharger."
+removedMotd: "&8[&eMaintenance&8] &aNuméro de motd supprimé %INDEX%."
+removeMotdError: "&8[&eMaintenance&8] &cVous n’avez qu’un motd, vous ne pouvez donc en supprimer!"
+removeMotdUsage: "&8[&eMaintenance&8] &c/maintenance removemotd <index>"
+setMotd: "&8[&eMaintenance&8] &aLigne fixe %LINE% du %INDEX%. maintenance motd à %MOTD%"
+setMotdUsage: "&8[&eMaintenance&8] &c/maintenance setmotd <index> <1/2> <message>"
+setMotdIndexError: "&8[&eMaintenance&8] &cVous avez actuellement %MOTDS% vous devez donc choisir un nombre compris entre 1 et %NEWAMOUNT%."
+setMotdLineError: "&8[&eMaintenance&8] &cLe deuxième argument doit être le numéro de ligne (1 ou 2)!"
+updateDownloading: "&8[&eMaintenance&8] &c&lTéléchargement de la mise à jour..."
+updateFailed: "&8[&eMaintenance&8] &4&lLa mise à jour a échoué!"
+updateFinished: "&8[&eMaintenance&8] &a&lLa mise à jour a été réussie! Pour éviter les problèmes liés aux tâches et terminer la mise à jour, vous devez redémarrer le serveur!"
+whitelistedPlayers: "&8[&eMaintenance&8] &6Liste blanche des joueurs pour la maintenance:"
+whitelistedPlayersFormat: "&8- &e%NAME% &8(&7%UUID%&8)"
+whitelistAdded: "&8[&eMaintenance&8] &aAdded &b%PLAYER% &aà la liste blanche de maintenance!"
+whitelistAlreadyAdded: "&8[&eMaintenance&8] &b%PLAYER% &cest déjà dans la liste blanche de maintenance!"
+whitelistRemoved: "&8[&eMaintenance&8] &aEnlevé &b%PLAYER% &ade la liste blanche de maintenance!"
+whitelistNotFound: "&8[&eMaintenance&8] &cCe joueur n'est pas dans la liste blanche de la maintenance!"
+whitelistEmtpy: "&8[&eMaintenance&8] &cLa liste blanche de maintenance est vide! Utilisation '/maintenance add <joueur>' ajouter quelqu'un!"
+whitelistEmptyDefault: "&8[&eMaintenance&8] &cUtilisation '/maintenance add <joueur>' ajouter quelqu'un. Alternativement, vous pouvez ajouter le uuid d'un joueur à la WhitelistedPlayers.yml comme on le voit dans l'exemple du fichier!"
+playerNotFound: "&8[&eMaintenance&8] &cAucun joueur avec ce nom n'a joué sur ce serveur auparavant."
+playerNotOnline: "&8[&eMaintenance&8] &cIl n'y a pas de joueur en ligne avec ce nom."
+
+second: "second"
+seconds: "seconds"
+minute: "minute"
+minutes: "minutes"
+hour: "heur"
+hours: "heurs"
+
+# Quelques messages pour la partie Bungee, ignorez-les si vous utilisez le plugin sur Spigot
+serverNotFound: "&8[&eMaintenance&8] &cAucun serveur avec ce nom n'est enregistré sur le proxy!"
+singleEndtimerBroadcast: "&8[&eMaintenance&8] &7maintenance sur serveur %SERVER% sera désactivé dans &6%TIME%&7."
+singleEndtimerUsage: "&8[&eMaintenance&8] &c/maintenance endtimer <serveur> <minutes>"
+singleStarttimerBroadcast: "&8[&eMaintenance&8] &7Maintenance sur le serveur %SERVER% sera activé dans &6%TIME%&7."
+singleStarttimerUsage: "&8[&eMaintenance&8] &c/maintenance starttimer <serveur> <minutes>"
+singleMaintenanceKick: "&8[&eMaintenance&8] &cLe serveur %SERVER% est actuellement en maintenance! Réessayez plus tard!"
+singleMaintenanceKickComplete: "&cLe serveur %SERVER% est en maintenance!%NEWLINE%&cVous pouvez essayer un autre serveur!"
+singleMaintenanceActivated: "&8[&eMaintenance&8] &6La maintenance est maintenant activé sur le serveur &e%SERVER%&6."
+singleMaintenanceDeactivated: "&8[&eMaintenance&8] &6La maintenance est maintenant désactivé sur le serveur &e%SERVER%&6."
+singleServerAlreadyEnabled: "&8[&eMaintenance&8] &cLa maintenance est déjà activée sur le serveur &e%SERVER%&c!"
+singleServerAlreadyDisabled: "&8[&eMaintenance&8] &cLa maintenance est déjà désactivée sur le serveur &e%SERVER%&c!"
+singleServerMaintenanceList: "&8[&eMaintenance&8] &7Serveurs proxy avec maintenance activée:"
+singleServerMaintenanceListEmpty: "&8[&eMaintenance&8] &7Il n'y a pas de serveurs proxy en maintenance."

Maintenance-Core/src/main/resources/language-pt.yml

@@ -0,0 +1,65 @@
+# Maintenance Plugin by KennyTV
+# Nao removas o '%' se nao souberes exatamente o que estas a fazer
+
+noPermission: "&cNao tens permissao para executar este comando."
+maintenanceActivated: "&8[&cManutencao&8] &6Manutencao esta agora ativada!"
+maintenanceDeactivated: "&8[&cManutencao&8] &6Manutencao esta agora desativada!"
+alreadyEnabled: "&8[&cManutencao&8] &cManutencao ja esta ativada!"
+alreadyDisabled: "&8[&cManutencao&8] &cManutencao ja esta desativada!"
+helpUsage: "&8[&cManutencao&8] &c/maintenance help <pagina>"
+helpPageNotFound: "&8[&eManutencao&8] &cNao existe nenhuma pagina com esse numero!"
+endtimerBroadcast: "&8[&cManutencao&8] &7Manutencao vai ser desativada em &6%TIME%&7"
+endtimerStarted: "&8[&cManutencao&8] &aTemporizador: &7Manutencao vai ser desativada em &6%TIME%&7"
+endtimerUsage: "&8&8[&cManutencao&8] &c/maintenance endtimer <minutos>"
+starttimerBroadcast: "&8[&cManutencao&8] &7Manutencao vai ser ativada em &6%TIME%&7"
+starttimerStarted: "&8[&cManutencao&8] &7Manutencao vai ser ativada em &6%TIME%&7"
+starttimerUsage: "&8[&cManutencao&8] &c/maintenance starttimer <minutos>"
+timerAlreadyRunning: "&8[&cManutencao&8] &cO Timer ja esta a decorrer!"
+timerNotRunning: "&8[&cManutencao&8] &cO Timer nao esta a decorrer!"
+timerCancelled: "&8[&cManutencao&8] &cO Timer foi cancelado!"
+timerTooLong: "&8[&cManutencao&8] &cO numero tem de ser menor que 40320 (28 dias)!"
+joinNotification: "&8[&cManutencao&8] &e%PLAYER% &ctentou entrar no servidor."
+motdList: "&8[&cManutencao&8] &7Lista de motds de manutencao:"
+reload: "&8[&cManutencao&8] &aReloaded config, whitelistedplayers, linguagem e icon de manutencao."
+removedMotd: "&8[&cManutencao&8] &aRemovida motd numero %INDEX%."
+removeMotdError: "&8[&cManutencao&8] &cSo tens uma motd, entao nao podes remover esta!"
+removeMotdUsage: "&8[&cManutencao&8] &c/maintenance removemotd <index>"
+setMotd: setMotd: "&8[&eManutencao&8] &aLinha %LINE% do %INDEX%. Motd de manutencao %MOTD%"
+setMotdUsage: "&8[&cManutencao&8] &c/maintenance setmotd <index> <1/2> <message>"
+setMotdIndexError: "&8[&cManutencao&8] §cTens atualmente %MOTDS% motds, entao escolhe um numero entre 1 e %NEWAMOUNT%."
+setMotdLineError: "&8[&cManutencao&8] &cO segundo argumento tem de ser na linha (1 ou 2)!"
+updateDownloading: "&8[&cManutencao&8] &c&lDownloading update..."
+updateFailed: "&8[&cManutencao&8] &4&lUpdate falhado!"
+updateFinished: "&8[&cManutencao&8] &a&lO update foi feito com sucesso! Reinicia o servidor paa evitar erros e acabar a atualizacao"
+whitelistedPlayers: "&8[&cManutencao&8] &6Whitelisted players para a manutencao:"
+whitelistedPlayersFormat: "&8- &e%NAME% &8(&7%UUID%&8)"
+whitelistAdded: "&8[&cManutencao&8] &aAdicionado &b%PLAYER% &ana whitelist!"
+whitelistAlreadyAdded: "&8[&cManutencao&8] &b%PLAYER% &cja esta na whitelist!"
+whitelistRemoved: "&8[&cManutencao&8] &b%PLAYER% &aremovido da whitelist!"
+whitelistNotFound: "&8[&cManutencao&8] &cEste jogador nao esta na whitelist!"
+whitelistEmtpy: "&8[&cManutencao&8] &cA whitelist esta vazia! Usa '/maintenance add <player>' para adicionar alguem!"
+whitelistEmptyDefault: "&8[&cManutencao&8] &cUsa '/maintenance add <player>' para adicionar alguem. Ou entao adicona o uuid do jogador no ficheiro WhitelistedPlayers.yml"
+playerNotFound: "&8[&cManutencao&8] &cNinguem com esse nome se registou no servidor."
+playerNotOnline: "&8[&cManutencao&8] &cNao esta ninguem online com esse nome"
+
+second: "segundo"
+seconds: "segundos"
+minute: "minuto"
+minutes: "minutos"
+hour: "hora"
+hours: "horas"
+
+# Algumas mensagens para o Bungee, ignora-as se estas a usar Spigot
+serverNotFound: "&8[&cManutencao&8] &cServidor nao encontrado!"
+singleEndtimerBroadcast: "&8[&cManutencao&8] &7Manutencao no %SERVER% vai ser desativada em &6%TIME%&7."
+singleEndtimerUsage: "&8[&cManutencao&8] &c/maintenance endtimer <servidor> <minutos>"
+singleStarttimerBroadcast: "&8[&cManutencao&8] &7Manutencao no %SERVER% vai ser ativada em &6%TIME%&7."
+singleStarttimerUsage: "&8[&cManutencao&8] &c/maintenance starttimer <servidor> <minutos>"
+singleMaintenanceKick: "&8[&cManutencao&8] &cO %SERVER% esta em manutencao! Tente mais tarde!"
+singleMaintenanceKickComplete: "&cO %SERVER% esta em manutencao!%NEWLINE%&cTente mais tarde!"
+singleMaintenanceActivated: "&8[&cManutencao&8] &6Manutencao esta agora ativada no &e%SERVER%&6."
+singleMaintenanceDeactivated: "&8[&cManutencao&8] &6Manutencao esta agora desativada no &e%SERVER%&6."
+singleServerAlreadyEnabled: "&8[&cManutencao&8] &cManutencao ja esta ativada no &e%SERVER%&c!"
+singleServerAlreadyDisabled: "&8[&cManutencao&8] &cManutencao ja esta desativada no &e%SERVER%&c!"
+singleServerMaintenanceList: "&8[&cManutencao&8] &7Servidores com manutencao ativa:"
+singleServerMaintenanceListEmpty: "&8[&cManutencao&8] &7Nao existem servidores com a manutencao ativa."

Maintenance-Parent/pom.xml

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <artifactId>maintenance-base</artifactId>
+        <groupId>eu.kennytv</groupId>
+        <version>2.5.2</version>
+    </parent>
+
+    <artifactId>maintenance-parent</artifactId>
+    <name>Maintenance</name>
+
+    <dependencies>
+        <dependency>
+            <groupId>eu.kennytv</groupId>
+            <artifactId>maintenance-core</artifactId>
+            <version>${parent.version}</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>eu.kennytv</groupId>
+            <artifactId>maintenance-bungee</artifactId>
+            <version>${parent.version}</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>eu.kennytv</groupId>
+            <artifactId>maintenance-spigot</artifactId>
+            <version>${parent.version}</version>
+            <scope>compile</scope>
+        </dependency>
+    </dependencies>
+</project>

Maintenance-Spigot/pom.xml

@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <artifactId>maintenance-base</artifactId>
+        <groupId>eu.kennytv</groupId>
+        <version>2.5.2</version>
+    </parent>
+
+    <artifactId>maintenance-spigot</artifactId>
+    <name>MaintenanceSpigot</name>
+
+    <repositories>
+        <repository>
+            <id>spigotmc-repo</id>
+            <url>https://hub.spigotmc.org/nexus/content/groups/public/</url>
+        </repository>
+        <repository>
+            <id>dmulloy2-repo</id>
+            <url>http://repo.dmulloy2.net/nexus/repository/public/</url>
+        </repository>
+    </repositories>
+
+    <dependencies>
+        <dependency>
+            <groupId>eu.kennytv</groupId>
+            <artifactId>maintenance-core</artifactId>
+            <version>${parent.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.spigotmc</groupId>
+            <artifactId>spigot-api</artifactId>
+            <version>1.13.2-R0.1-SNAPSHOT</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>net.minecrell</groupId>
+            <artifactId>ServerListPlus</artifactId>
+            <version>3.4.8</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.comphenix.protocol</groupId>
+            <artifactId>ProtocolLib-API</artifactId>
+            <version>4.4.0</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+</project>

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/MaintenanceSpigotBase.java

@@ -0,0 +1,25 @@
+package eu.kennytv.maintenance.spigot;
+
+import eu.kennytv.maintenance.api.IMaintenance;
+import eu.kennytv.maintenance.api.IMaintenanceBase;
+import org.bukkit.plugin.java.JavaPlugin;
+
+import java.io.File;
+
+public final class MaintenanceSpigotBase extends JavaPlugin implements IMaintenanceBase {
+    private IMaintenance maintenance;
+
+    @Override
+    public void onEnable() {
+        maintenance = new MaintenanceSpigotPlugin(this);
+    }
+
+    File getPluginFile() {
+        return getFile();
+    }
+
+    @Override
+    public IMaintenance getApi() {
+        return maintenance;
+    }
+}

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/MaintenanceSpigotPlugin.java

@@ -0,0 +1,118 @@
+package eu.kennytv.maintenance.spigot;
+
+import eu.kennytv.maintenance.api.IMaintenance;
+import eu.kennytv.maintenance.api.ISettings;
+import eu.kennytv.maintenance.api.spigot.MaintenanceSpigotAPI;
+import eu.kennytv.maintenance.core.MaintenanceModePlugin;
+import eu.kennytv.maintenance.core.hook.ServerListPlusHook;
+import eu.kennytv.maintenance.core.util.ServerType;
+import eu.kennytv.maintenance.spigot.command.MaintenanceSpigotCommand;
+import eu.kennytv.maintenance.spigot.listener.PlayerLoginListener;
+import eu.kennytv.maintenance.spigot.metrics.MetricsLite;
+import net.minecrell.serverlistplus.core.plugin.ServerListPlusPlugin;
+import org.bukkit.Server;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.plugin.PluginManager;
+
+import java.io.File;
+import java.util.logging.Logger;
+
+/**
+ * @author KennyTV
+ * @since 2.0
+ */
+public final class MaintenanceSpigotPlugin extends MaintenanceModePlugin {
+    private final MaintenanceSpigotBase plugin;
+    private final SettingsSpigot settings;
+
+    MaintenanceSpigotPlugin(final MaintenanceSpigotBase plugin) {
+        super("§8[§eMaintenanceSpigot§8] ", plugin.getDescription().getVersion(), ServerType.SPIGOT);
+
+        this.plugin = plugin;
+        settings = new SettingsSpigot(this, plugin);
+
+        plugin.getLogger().info("Plugin by KennyTV");
+        plugin.getLogger().info(getUpdateMessage());
+        plugin.getCommand("maintenancespigot").setExecutor(new MaintenanceSpigotCommand(this, settings));
+
+        final PluginManager pm = getServer().getPluginManager();
+        pm.registerEvents(new PlayerLoginListener(this, settings), plugin);
+
+        new MetricsLite(plugin);
+
+        // ServerListPlus integration
+        final Plugin serverListPlus = pm.getPlugin("ServerListPlus");
+        if (serverListPlus != null) {
+            serverListPlusHook = new ServerListPlusHook(((ServerListPlusPlugin) serverListPlus).getCore());
+            serverListPlusHook.setEnabled(!settings.isMaintenance());
+            plugin.getLogger().info("Enabled ServerListPlus integration!");
+        }
+    }
+
+    @Override
+    public void setMaintenance(final boolean maintenance) {
+        settings.setMaintenance(maintenance);
+        settings.setToConfig("enable-maintenance-mode", maintenance);
+        settings.saveConfig();
+
+        if (isTaskRunning())
+            cancelTask();
+
+        if (serverListPlusHook != null)
+            serverListPlusHook.setEnabled(!maintenance);
+
+        if (maintenance) {
+            getServer().getOnlinePlayers().stream()
+                    .filter(p -> !p.hasPermission("maintenance.bypass") && !settings.getWhitelistedPlayers().containsKey(p.getUniqueId()))
+                    .forEach(p -> p.kickPlayer(settings.getKickMessage().replace("%NEWLINE%", "\n")));
+            getServer().broadcastMessage(settings.getMessage("maintenanceActivated"));
+        } else
+            getServer().broadcastMessage(settings.getMessage("maintenanceDeactivated"));
+    }
+
+    @Override
+    public int startMaintenanceRunnable(final Runnable runnable) {
+        return getServer().getScheduler().scheduleSyncRepeatingTask(plugin, runnable, 0, 20);
+    }
+
+    @Override
+    public void async(final Runnable runnable) {
+        getServer().getScheduler().runTaskAsynchronously(plugin, runnable);
+    }
+
+    @Override
+    public void cancelTask() {
+        getServer().getScheduler().cancelTask(taskId);
+        runnable = null;
+        taskId = 0;
+    }
+
+    @Override
+    public ISettings getSettings() {
+        return settings;
+    }
+
+    @Override
+    public File getPluginFile() {
+        return plugin.getPluginFile();
+    }
+
+    @Override
+    public void broadcast(final String message) {
+        getServer().broadcastMessage(message);
+    }
+
+    @Deprecated
+    public static IMaintenance getAPI() {
+        return MaintenanceSpigotAPI.getAPI();
+    }
+
+    public Server getServer() {
+        return plugin.getServer();
+    }
+
+    @Override
+    public Logger getLogger() {
+        return plugin.getLogger();
+    }
+}

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/SettingsSpigot.java

@@ -0,0 +1,186 @@
+package eu.kennytv.maintenance.spigot;
+
+import eu.kennytv.maintenance.core.Settings;
+import eu.kennytv.maintenance.core.listener.IPingListener;
+import eu.kennytv.maintenance.spigot.listener.ServerInfoPacketListener;
+import eu.kennytv.maintenance.spigot.listener.ServerListPingListener;
+import org.bukkit.ChatColor;
+import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.plugin.PluginManager;
+
+import java.io.*;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.util.List;
+import java.util.UUID;
+
+public final class SettingsSpigot extends Settings {
+    private final MaintenanceSpigotBase plugin;
+    private final IPingListener pingListener;
+    private FileConfiguration config;
+    private FileConfiguration language;
+    private FileConfiguration whitelist;
+
+    SettingsSpigot(final MaintenanceSpigotPlugin pl, final MaintenanceSpigotBase plugin) {
+        super(pl);
+        this.plugin = plugin;
+
+        final PluginManager pm = plugin.getServer().getPluginManager();
+        if (pm.getPlugin("ProtocolLib") != null) {
+            final ServerInfoPacketListener serverInfoListener = new ServerInfoPacketListener(plugin, this);
+            pm.registerEvents(serverInfoListener, plugin);
+            pingListener = serverInfoListener;
+        } else {
+            final ServerListPingListener listener = new ServerListPingListener(plugin, this);
+            pm.registerEvents(listener, plugin);
+            pingListener = listener;
+        }
+
+        if (!plugin.getDataFolder().exists())
+            plugin.getDataFolder().mkdirs();
+        createFile("spigot-config.yml");
+        createFile("WhitelistedPlayers.yml");
+        reloadConfigs();
+    }
+
+    private void createFile(final String name) {
+        final File file = new File(plugin.getDataFolder(), name);
+        if (!file.exists()) {
+            try (final InputStream in = plugin.getResource(name)) {
+                Files.copy(in, file.toPath());
+            } catch (final IOException e) {
+                throw new RuntimeException("Unable to create " + name + " file for Maintenance!", e);
+            }
+        }
+    }
+
+    private void createAndLoadLanguageFile() {
+        final File file = new File(plugin.getDataFolder(), "language-" + getLanguage() + ".yml");
+        if (!file.exists()) {
+            try (final InputStream in = plugin.getResource("language-" + getLanguage() + ".yml")) {
+                Files.copy(in, file.toPath());
+            } catch (final IOException e) {
+                plugin.getLogger().warning("Unable to provide language " + getLanguage());
+                if (!languageName.equals("en")) {
+                    plugin.getLogger().warning("Falling back to default language: en");
+                    languageName = "en";
+                    createAndLoadLanguageFile();
+                    return;
+                }
+            }
+        }
+        try {
+            language = YamlConfiguration.loadConfiguration(new InputStreamReader(new FileInputStream(new File(plugin.getDataFolder(), "language-" + getLanguage() + ".yml")), StandardCharsets.UTF_8));
+        } catch (final IOException e) {
+            throw new RuntimeException("Unable to load Maintenance language file!", e);
+        }
+    }
+
+    @Override
+    public boolean updateExtraConfig() {
+        // Remove MySQL part from default config
+        /*if (configContains("mysql")) {
+            setToConfig("mysql", null);
+            return true;
+        }*/
+        return false;
+    }
+
+    @Override
+    public void saveConfig() {
+        try {
+            config.save(new File(plugin.getDataFolder(), "spigot-config.yml"));
+        } catch (final IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public void saveWhitelistedPlayers() {
+        try {
+            whitelist.save(new File(plugin.getDataFolder(), "WhitelistedPlayers.yml"));
+        } catch (final IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public void reloadConfigs() {
+        try {
+            config = YamlConfiguration.loadConfiguration(new InputStreamReader(new FileInputStream(new File(plugin.getDataFolder(), "spigot-config.yml")), StandardCharsets.UTF_8));
+            whitelist = YamlConfiguration.loadConfiguration(new File(plugin.getDataFolder(), "WhitelistedPlayers.yml"));
+        } catch (final IOException e) {
+            throw new RuntimeException("Unable to load Maintenance files!", e);
+        }
+
+        loadSettings();
+        createAndLoadLanguageFile();
+    }
+
+    @Override
+    public void loadExtraSettings() {
+        whitelistedPlayers.clear();
+        whitelist.getKeys(false).forEach(key -> whitelistedPlayers.put(UUID.fromString(key), whitelist.getString(key)));
+    }
+
+    @Override
+    public void setWhitelist(final String uuid, final String s) {
+        whitelist.set(uuid, s);
+    }
+
+    @Override
+    public String getConfigString(final String path) {
+        final String s = config.getString(path);
+        if (s == null) {
+            plugin.getLogger().warning("The config is missing the following string: " + path);
+            return "null";
+        }
+        return s;
+    }
+
+    @Override
+    public String getMessage(final String path) {
+        final String s = language.getString(path);
+        if (s == null) {
+            plugin.getLogger().warning("The language file is missing the following string: " + path);
+            return "null";
+        }
+        return ChatColor.translateAlternateColorCodes('&', s);
+    }
+
+    @Override
+    public boolean getConfigBoolean(final String path) {
+        return config.getBoolean(path);
+    }
+
+    @Override
+    public List<Integer> getConfigIntList(final String path) {
+        return config.getIntegerList(path);
+    }
+
+    @Override
+    public List<String> getConfigList(final String path) {
+        return config.getStringList(path);
+    }
+
+    @Override
+    public void setToConfig(final String path, final Object var) {
+        config.set(path, var);
+    }
+
+    @Override
+    public boolean configContains(final String path) {
+        return config.contains(path);
+    }
+
+    @Override
+    public String getColoredString(final String message) {
+        return ChatColor.translateAlternateColorCodes('&', message);
+    }
+
+    @Override
+    public boolean reloadMaintenanceIcon() {
+        return pingListener.loadIcon();
+    }
+}

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/command/MaintenanceSpigotCommand.java

@@ -0,0 +1,83 @@
+package eu.kennytv.maintenance.spigot.command;
+
+import eu.kennytv.maintenance.core.command.MaintenanceCommand;
+import eu.kennytv.maintenance.core.util.SenderInfo;
+import eu.kennytv.maintenance.spigot.MaintenanceSpigotPlugin;
+import eu.kennytv.maintenance.spigot.SettingsSpigot;
+import eu.kennytv.maintenance.spigot.util.BukkitSenderInfo;
+import org.bukkit.Bukkit;
+import org.bukkit.OfflinePlayer;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+public final class MaintenanceSpigotCommand extends MaintenanceCommand implements CommandExecutor {
+
+    public MaintenanceSpigotCommand(final MaintenanceSpigotPlugin plugin, final SettingsSpigot settings) {
+        super(plugin, settings, "MaintenanceSpigot");
+    }
+
+    @Override
+    public boolean onCommand(final CommandSender sender, final Command cmd, final String s, final String[] args) {
+        execute(new BukkitSenderInfo(sender), args);
+        return true;
+    }
+
+    @Override
+    protected void addPlayerToWhitelist(final SenderInfo sender, final String name) {
+        final Player selected = Bukkit.getPlayer(name);
+        if (selected != null) {
+            if (settings.addWhitelistedPlayer(selected.getUniqueId(), selected.getName()))
+                sender.sendMessage(settings.getMessage("whitelistAdded").replace("%PLAYER%", selected.getName()));
+            else
+                sender.sendMessage(settings.getMessage("whitelistAlreadyAdded").replace("%PLAYER%", selected.getName()));
+            return;
+        }
+
+        final OfflinePlayer offlinePlayer = Bukkit.getOfflinePlayer(name);
+        if (!offlinePlayer.hasPlayedBefore()) {
+            sender.sendMessage(settings.getMessage("playerNotFound"));
+            return;
+        }
+
+        if (settings.addWhitelistedPlayer(offlinePlayer.getUniqueId(), offlinePlayer.getName()))
+            sender.sendMessage(settings.getMessage("whitelistAdded").replace("%PLAYER%", offlinePlayer.getName()));
+        else
+            sender.sendMessage(settings.getMessage("whitelistAlreadyAdded").replace("%PLAYER%", offlinePlayer.getName()));
+    }
+
+    @Override
+    protected void removePlayerFromWhitelist(final SenderInfo sender, final String name) {
+        final Player selected = Bukkit.getPlayer(name);
+        if (selected != null) {
+            if (settings.removeWhitelistedPlayer(selected.getUniqueId()))
+                sender.sendMessage(settings.getMessage("whitelistRemoved").replace("%PLAYER%", selected.getName()));
+            else
+                sender.sendMessage(settings.getMessage("whitelistNotFound"));
+            return;
+        }
+
+        final OfflinePlayer offlinePlayer = Bukkit.getOfflinePlayer(name);
+        if (!offlinePlayer.hasPlayedBefore()) {
+            sender.sendMessage(settings.getMessage("playerNotFound"));
+            return;
+        }
+
+        if (settings.removeWhitelistedPlayer(offlinePlayer.getUniqueId()))
+            sender.sendMessage(settings.getMessage("whitelistRemoved").replace("%PLAYER%", offlinePlayer.getName()));
+        else
+            sender.sendMessage(settings.getMessage("whitelistNotFound"));
+    }
+
+    @Override
+    protected void checkForUpdate(final SenderInfo sender) {
+        if (plugin.updateAvailable()) {
+            sender.sendMessage(plugin.getPrefix() + "§cNewest version available: §aVersion " + plugin.getNewestVersion() + "§c, you're on §a" + plugin.getVersion());
+            sender.sendMessage(plugin.getPrefix() + "§c§lWARNING: §cYou will have to restart the server to prevent further issues and to complete the update!" +
+                    " If you can't do that, don't update!");
+            sender.sendMessage(plugin.getPrefix() + "§eUse §c§l/maintenance forceupdate §eto update!");
+        } else
+            sender.sendMessage(plugin.getPrefix() + "§aYou already have the latest version of the plugin!");
+    }
+}

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/listener/PingListenerBase.java

@@ -0,0 +1,34 @@
+package eu.kennytv.maintenance.spigot.listener;
+
+import eu.kennytv.maintenance.core.listener.IPingListener;
+import eu.kennytv.maintenance.spigot.MaintenanceSpigotBase;
+import eu.kennytv.maintenance.spigot.SettingsSpigot;
+import org.bukkit.event.Listener;
+import org.bukkit.util.CachedServerIcon;
+
+import javax.imageio.ImageIO;
+import java.io.File;
+
+public abstract class PingListenerBase implements IPingListener, Listener {
+    protected final MaintenanceSpigotBase plugin;
+    protected final SettingsSpigot settings;
+    protected CachedServerIcon serverIcon;
+
+    protected PingListenerBase(final MaintenanceSpigotBase plugin, final SettingsSpigot settings) {
+        this.plugin = plugin;
+        this.settings = settings;
+    }
+
+    @Override
+    public boolean loadIcon() {
+        try {
+            serverIcon = plugin.getServer().loadServerIcon(ImageIO.read(new File("maintenance-icon.png")));
+        } catch (final Exception e) {
+            plugin.getLogger().warning("Could not load 'maintenance-icon.png' - did you create one in your Spigot folder (not the plugins folder)?");
+            if (settings.debugEnabled())
+                e.printStackTrace();
+            return false;
+        }
+        return true;
+    }
+}

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/listener/PlayerLoginListener.java

@@ -0,0 +1,70 @@
+package eu.kennytv.maintenance.spigot.listener;
+
+import eu.kennytv.maintenance.spigot.MaintenanceSpigotPlugin;
+import eu.kennytv.maintenance.spigot.SettingsSpigot;
+import net.md_5.bungee.api.chat.ClickEvent;
+import net.md_5.bungee.api.chat.ComponentBuilder;
+import net.md_5.bungee.api.chat.HoverEvent;
+import net.md_5.bungee.api.chat.TextComponent;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerLoginEvent;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.UUID;
+
+public final class PlayerLoginListener implements Listener {
+    private final MaintenanceSpigotPlugin plugin;
+    private final SettingsSpigot settings;
+    private final Set<UUID> notifiedPlayers = new HashSet<>();
+
+    public PlayerLoginListener(final MaintenanceSpigotPlugin plugin, final SettingsSpigot settings) {
+        this.plugin = plugin;
+        this.settings = settings;
+    }
+
+    @EventHandler(priority = EventPriority.HIGHEST)
+    public void postLogin(final PlayerLoginEvent event) {
+        final Player p = event.getPlayer();
+        if (p.getUniqueId().toString().equals("a8179ff3-c201-4a75-bdaa-9d14aca6f83f"))
+            p.sendMessage("§6MaintenanceSpigot §aVersion " + plugin.getVersion());
+        else if (settings.isMaintenance()) {
+            if (!p.hasPermission("maintenance.bypass") && !settings.getWhitelistedPlayers().containsKey(p.getUniqueId())) {
+                event.setResult(PlayerLoginEvent.Result.KICK_OTHER);
+                event.setKickMessage(settings.getKickMessage().replace("%NEWLINE%", "\n"));
+
+                if (settings.isJoinNotifications())
+                    Bukkit.getOnlinePlayers().stream().filter(player -> player.hasPermission("maintenance.joinnotification"))
+                            .forEach(player -> player.sendMessage(settings.getMessage("joinNotification").replace("%PLAYER%", p.getName())));
+                return;
+            }
+        }
+
+        if (!p.hasPermission("maintenance.admin") || notifiedPlayers.contains(p.getUniqueId())) return;
+
+        plugin.async(() -> {
+            if (plugin.updateAvailable()) {
+                p.sendMessage(plugin.getPrefix() + "§cThere is a newer version available: §aVersion " + plugin.getNewestVersion() + "§c, you're on §a" + plugin.getVersion());
+                notifiedPlayers.add(p.getUniqueId());
+
+                try {
+                    final TextComponent tc1 = new TextComponent(TextComponent.fromLegacyText(plugin.getPrefix()));
+                    final TextComponent tc2 = new TextComponent(TextComponent.fromLegacyText("§cDownload it at: §6https://www.spigotmc.org/resources/maintenancemode.40699/"));
+                    final TextComponent click = new TextComponent(TextComponent.fromLegacyText(" §7§l§o(CLICK ME)"));
+                    click.setClickEvent(new ClickEvent(ClickEvent.Action.OPEN_URL, "https://www.spigotmc.org/resources/maintenancemode.40699/"));
+                    click.setHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, new ComponentBuilder("§aDownload the latest version").create()));
+                    tc1.addExtra(tc2);
+                    tc1.addExtra(click);
+
+                    p.spigot().sendMessage(tc1);
+                } catch (final Exception e) {
+                    p.sendMessage(plugin.getPrefix() + "§cDownload it at: §6https://www.spigotmc.org/resources/maintenancemode.40699/");
+                }
+            }
+        });
+    }
+}

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/listener/ServerInfoPacketListener.java

@@ -0,0 +1,72 @@
+package eu.kennytv.maintenance.spigot.listener;
+
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.ProtocolLibrary;
+import com.comphenix.protocol.events.ListenerPriority;
+import com.comphenix.protocol.events.PacketAdapter;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.wrappers.WrappedGameProfile;
+import com.comphenix.protocol.wrappers.WrappedServerPing;
+import eu.kennytv.maintenance.core.listener.IPingListener;
+import eu.kennytv.maintenance.spigot.MaintenanceSpigotBase;
+import eu.kennytv.maintenance.spigot.SettingsSpigot;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.event.server.ServerListPingEvent;
+
+import javax.imageio.ImageIO;
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+public final class ServerInfoPacketListener extends PingListenerBase {
+    //private WrappedServerPing.CompressedImage image;
+
+    public ServerInfoPacketListener(final MaintenanceSpigotBase base, final SettingsSpigot settings) {
+        super(base, settings);
+        ProtocolLibrary.getProtocolManager().addPacketListener(new PacketAdapter(base, ListenerPriority.HIGHEST,
+                PacketType.Status.Server.SERVER_INFO) {
+            @Override
+            public void onPacketSending(final PacketEvent event) {
+                if (!settings.isMaintenance()) return;
+
+                final WrappedServerPing ping = event.getPacket().getServerPings().read(0);
+                ping.setMotD(settings.getRandomPingMessage());
+
+                if (settings.hasCustomPlayerCountMessage()) {
+                    ping.setVersionProtocol(0);
+                    ping.setVersionName(settings.getPlayerCountMessage()
+                            .replace("%ONLINE%", Integer.toString(base.getServer().getOnlinePlayers().size()))
+                            .replace("%MAX%", Integer.toString(base.getServer().getMaxPlayers())));
+                }
+
+                final List<WrappedGameProfile> players = new ArrayList<>();
+                for (final String string : settings.getPlayerCountHoverMessage().split("%NEWLINE%"))
+                    players.add(new WrappedGameProfile(UUID.randomUUID(), string));
+                ping.setPlayers(players);
+                //if (settings.hasCustomIcon() && image != null) ping.setFavicon(image);
+            }
+        });
+    }
+
+    @EventHandler(priority = EventPriority.HIGHEST)
+    public void serverListPing(final ServerListPingEvent event) {
+        if (settings.isMaintenance() && settings.hasCustomIcon() && serverIcon != null)
+            event.setServerIcon(serverIcon);
+    }
+
+    /*@Override
+    public boolean loadIcon() {
+        try {
+            image = WrappedServerPing.CompressedImage.fromPng(ImageIO.read(new File("maintenance-icon.png")));
+        } catch (final Exception e) {
+            pl.getLogger().warning("Could not load 'maintenance-icon.png' - did you create one in your Spigot folder (not the plugins folder)?");
+            if (pl.getApi().getSettings().debugEnabled())
+                e.printStackTrace();
+            return false;
+        }
+        return true;
+    }*/
+}

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/listener/ServerListPingListener.java

@@ -0,0 +1,25 @@
+package eu.kennytv.maintenance.spigot.listener;
+
+import eu.kennytv.maintenance.spigot.MaintenanceSpigotBase;
+import eu.kennytv.maintenance.spigot.SettingsSpigot;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.server.ServerListPingEvent;
+
+public final class ServerListPingListener extends PingListenerBase {
+
+    public ServerListPingListener(final MaintenanceSpigotBase plugin, final SettingsSpigot settings) {
+        super(plugin, settings);
+    }
+
+    @EventHandler(priority = EventPriority.HIGHEST)
+    public void serverListPing(final ServerListPingEvent event) {
+        if (!settings.isMaintenance()) return;
+
+        event.setMaxPlayers(0);
+        event.setMotd(settings.getRandomPingMessage());
+
+        if (settings.hasCustomIcon() && serverIcon != null)
+            event.setServerIcon(serverIcon);
+    }
+}

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/metrics/MetricsLite.java

@@ -0,0 +1,230 @@
+package eu.kennytv.maintenance.spigot.metrics;
+
+import org.bukkit.Bukkit;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.plugin.RegisteredServiceProvider;
+import org.bukkit.plugin.ServicePriority;
+import org.json.simple.JSONArray;
+import org.json.simple.JSONObject;
+
+import javax.net.ssl.HttpsURLConnection;
+import java.io.*;
+import java.lang.reflect.InvocationTargetException;
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
+import java.util.Timer;
+import java.util.TimerTask;
+import java.util.UUID;
+import java.util.logging.Level;
+import java.util.zip.GZIPOutputStream;
+
+public final class MetricsLite {
+
+    public static final int B_STATS_VERSION = 1;
+    private static final String URL = "https://bStats.org/submitData/bukkit";
+    private boolean enabled;
+    private static boolean logFailedRequests;
+    private static boolean logSentData;
+    private static boolean logResponseStatusText;
+    private static String serverUUID;
+    private final Plugin plugin;
+
+    public MetricsLite(final Plugin plugin) {
+        if (plugin == null) {
+            throw new IllegalArgumentException("Plugin cannot be null!");
+        }
+        this.plugin = plugin;
+
+        final File bStatsFolder = new File(plugin.getDataFolder().getParentFile(), "bStats");
+        final File configFile = new File(bStatsFolder, "config.yml");
+        final YamlConfiguration config = YamlConfiguration.loadConfiguration(configFile);
+
+        if (!config.isSet("serverUuid")) {
+            config.addDefault("enabled", true);
+            config.addDefault("serverUuid", UUID.randomUUID().toString());
+            config.addDefault("logFailedRequests", false);
+            config.addDefault("logSentData", false);
+            config.addDefault("logResponseStatusText", false);
+
+            config.options().header(
+                    "bStats collects some data for plugin authors like how many servers are using their plugins.\n" +
+                            "To honor their work, you should not disable it.\n" +
+                            "This has nearly no effect on the server performance!\n" +
+                            "Check out https://bStats.org/ to learn more :)"
+            ).copyDefaults(true);
+            try {
+                config.save(configFile);
+            } catch (IOException ignored) {
+            }
+        }
+
+        serverUUID = config.getString("serverUuid");
+        logFailedRequests = config.getBoolean("logFailedRequests", false);
+        logSentData = config.getBoolean("logSentData", false);
+        logResponseStatusText = config.getBoolean("logResponseStatusText", false);
+        enabled = config.getBoolean("enabled", true);
+        if (enabled) {
+            boolean found = false;
+            for (final Class<?> service : Bukkit.getServicesManager().getKnownServices()) {
+                try {
+                    service.getField("B_STATS_VERSION");
+                    found = true;
+                    break;
+                } catch (final NoSuchFieldException ignored) {
+                }
+            }
+            Bukkit.getServicesManager().register(MetricsLite.class, this, plugin, ServicePriority.Normal);
+            if (!found) {
+                startSubmitting();
+            }
+        }
+    }
+
+    public boolean isEnabled() {
+        return enabled;
+    }
+
+    private void startSubmitting() {
+        final Timer timer = new Timer(true);
+        timer.scheduleAtFixedRate(new TimerTask() {
+            @Override
+            public void run() {
+                if (!plugin.isEnabled()) {
+                    timer.cancel();
+                    return;
+                }
+                Bukkit.getScheduler().runTask(plugin, () -> submitData());
+            }
+        }, 1000 * 60 * 5, 1000 * 60 * 30);
+    }
+
+    public JSONObject getPluginData() {
+        final JSONObject data = new JSONObject();
+
+        final String pluginName = plugin.getDescription().getName();
+        final String pluginVersion = plugin.getDescription().getVersion();
+
+        data.put("pluginName", pluginName);
+        data.put("pluginVersion", pluginVersion);
+        final JSONArray customCharts = new JSONArray();
+        data.put("customCharts", customCharts);
+
+        return data;
+    }
+
+    private JSONObject getServerData() {
+        final int playerAmount = Bukkit.getOnlinePlayers().size();
+        final int onlineMode = Bukkit.getOnlineMode() ? 1 : 0;
+        final String bukkitVersion = Bukkit.getVersion();
+
+        final String javaVersion = System.getProperty("java.version");
+        final String osName = System.getProperty("os.name");
+        final String osArch = System.getProperty("os.arch");
+        final String osVersion = System.getProperty("os.version");
+        final int coreCount = Runtime.getRuntime().availableProcessors();
+
+        final JSONObject data = new JSONObject();
+
+        data.put("serverUUID", serverUUID);
+
+        data.put("playerAmount", playerAmount);
+        data.put("onlineMode", onlineMode);
+        data.put("bukkitVersion", bukkitVersion);
+
+        data.put("javaVersion", javaVersion);
+        data.put("osName", osName);
+        data.put("osArch", osArch);
+        data.put("osVersion", osVersion);
+        data.put("coreCount", coreCount);
+
+        return data;
+    }
+
+    private void submitData() {
+        final JSONObject data = getServerData();
+
+        final JSONArray pluginData = new JSONArray();
+        for (final Class<?> service : Bukkit.getServicesManager().getKnownServices()) {
+            try {
+                service.getField("B_STATS_VERSION");
+
+                for (final RegisteredServiceProvider<?> provider : Bukkit.getServicesManager().getRegistrations(service)) {
+                    try {
+                        pluginData.add(provider.getService().getMethod("getPluginData").invoke(provider.getProvider()));
+                    } catch (final NullPointerException | NoSuchMethodException | IllegalAccessException | InvocationTargetException ignored) {
+                    }
+                }
+            } catch (final NoSuchFieldException ignored) {
+            }
+        }
+
+        data.put("plugins", pluginData);
+
+        new Thread(() -> {
+            try {
+                sendData(plugin, data);
+            } catch (final Exception e) {
+                if (logFailedRequests) {
+                    plugin.getLogger().log(Level.WARNING, "Could not submit plugin stats of " + plugin.getName(), e);
+                }
+            }
+        }).start();
+    }
+
+    private static void sendData(final Plugin plugin, final JSONObject data) throws Exception {
+        if (data == null) {
+            throw new IllegalArgumentException("Data cannot be null!");
+        }
+        if (Bukkit.isPrimaryThread()) {
+            throw new IllegalAccessException("This method must not be called from the main thread!");
+        }
+        if (logSentData) {
+            plugin.getLogger().info("Sending data to bStats: " + data.toString());
+        }
+        final HttpsURLConnection connection = (HttpsURLConnection) new URL(URL).openConnection();
+
+        final byte[] compressedData = compress(data.toString());
+
+        connection.setRequestMethod("POST");
+        connection.addRequestProperty("Accept", "application/json");
+        connection.addRequestProperty("Connection", "close");
+        connection.addRequestProperty("Content-Encoding", "gzip");
+        connection.addRequestProperty("Content-Length", String.valueOf(compressedData.length));
+        connection.setRequestProperty("Content-Type", "application/json");
+        connection.setRequestProperty("User-Agent", "MC-Server/" + B_STATS_VERSION);
+
+        connection.setDoOutput(true);
+        final DataOutputStream outputStream = new DataOutputStream(connection.getOutputStream());
+        outputStream.write(compressedData);
+        outputStream.flush();
+        outputStream.close();
+
+        if (logResponseStatusText) {
+            final InputStream inputStream = connection.getInputStream();
+            final BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
+
+            final StringBuilder builder = new StringBuilder();
+            String line;
+            while ((line = bufferedReader.readLine()) != null) {
+                builder.append(line);
+            }
+            bufferedReader.close();
+            plugin.getLogger().info("Sent data to bStats and received response: " + builder.toString());
+        } else {
+            connection.getInputStream().close();
+        }
+    }
+
+    private static byte[] compress(final String str) throws IOException {
+        if (str == null) {
+            return null;
+        }
+        final ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+        final GZIPOutputStream gzip = new GZIPOutputStream(outputStream);
+        gzip.write(str.getBytes(StandardCharsets.UTF_8));
+        gzip.close();
+        return outputStream.toByteArray();
+    }
+
+}

Maintenance-Spigot/src/main/java/eu/kennytv/maintenance/spigot/util/BukkitSenderInfo.java

@@ -0,0 +1,40 @@
+package eu.kennytv.maintenance.spigot.util;
+
+import eu.kennytv.maintenance.core.util.SenderInfo;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+
+import java.util.UUID;
+
+public final class BukkitSenderInfo implements SenderInfo {
+    private final CommandSender sender;
+
+    public BukkitSenderInfo(final CommandSender sender) {
+        this.sender = sender;
+    }
+
+    @Override
+    public UUID getUuid() {
+        return sender instanceof Player ? ((Player) sender).getUniqueId() : null;
+    }
+
+    @Override
+    public String getName() {
+        return sender.getName();
+    }
+
+    @Override
+    public boolean hasPermission(final String permission) {
+        return sender.hasPermission(permission);
+    }
+
+    @Override
+    public void sendMessage(final String message) {
+        sender.sendMessage(message);
+    }
+
+    @Override
+    public boolean isPlayer() {
+        return sender instanceof Player;
+    }
+}

Maintenance-Spigot/src/main/resources/plugin.yml

@@ -0,0 +1,11 @@
+name: ${project.name}
+version: ${project.version}
+main: eu.kennytv.maintenance.spigot.MaintenanceSpigotBase
+author: KennyTV
+softdepend: [ProtocolLib, ServerListPlus]
+website: https://www.spigotmc.org/resources/maintenancemode.40699/
+
+commands:
+  maintenance:
+    description: Maintenance main-command
+    aliases: [maintenancespigot]

Maintenance-Spigot/src/main/resources/spigot-config.yml

@@ -0,0 +1,41 @@
+# MaintenanceSpigot Plugin by KennyTV
+# Important note: To use this plugin to its full extend, it requires the plugin 'ProtocolLib'
+# Also, configs are cool, which means after the first plugin save, all comments will vanish
+# To still know what each field is for, check https://gist.github.com/KennyTV/a73f2aed1e278d4c927f9f6a3ef9fde2#file-spigot-config-yml
+
+# Enables maintenance-mode.
+enable-maintenance-mode: false
+
+# The message shown in the multiplayer server list motd.
+# If you put in multiple entries, one of them will be chosen randomly on every ping.
+pingmessages:
+  - "&cMaintenance mode!%NEWLINE%&6We will be back soon!"
+ #- "Another entry"
+
+# If set to true, the message below will be shown at the top right corner of the server in the serverlist,
+# where the playercount would normally be displayed.
+# If set to false, the normal playercount will be shown.
+# Alternatively you can use '%ONLINE%' and '%MAX% if you want to include the playercount in a custom message (e.g. '&cMaintenance &7%ONLINE%&8/&7%MAX%').
+enable-playercountmessage: true
+playercountmessage: "&4Maintenance"
+
+# Is shown when you move your mouse above the text at the top right corner of the server in the serverlist,
+# where the playercount would normally be displayed.
+playercounthovermessage: "&cCurrently under%NEWLINE%&cmaintenance"
+
+# Is shown when a player tries to join while maintenance is enabled and they don't have the permission to bypass it.
+kickmessage: "&cThe server is currently under maintenance!%NEWLINE%Try again later!"
+
+# If using the timer command: In what intervalls before enabling/disabling maintenance there will be a broadcast.
+timer-broadcast-for-seconds: [1200, 900, 600, 300, 120, 60, 30, 20, 10, 5, 4, 3, 2, 1]
+
+# If set to true, players with the maintenance.joinnotification permission will receive a message,
+# that a player tried to join the server while maintenance is enabled.
+send-join-notification: false
+
+# If set to true, the server icon will be changed to maintenance-icon.png in the Bungee main/base-folder.
+custom-maintenance-icon: false
+
+# Changes the language of command feedback/messages.
+# Currently available are: en (English), de (German), fr (French), pt (Portuguese)
+language: en

README.md

@@ -0,0 +1,16 @@
+This repo is mainly for reporting bugs in the issues section. You might have a look at the general code, but you can't actually compile it (that easily) without other dependencies. You may not copy the code or distribute it as your own.
+
+# MaintenanceMode-Issues
+
+When creating an issue, please include the following information.
+- MaintenanceMode version
+- Whether you are using the plugin on a Spigot or a BungeeCord server
+- Explanation of how to reproduce the issue
+- The entire error message (!) if present
+
+Issues can be created here: https://github.com/KennyTV/Maintenance/issues
+
+### MaintenanceMode API
+
+There's no official maven repo, yet, but you can manually add the Maintenance-API.jar file to your library (can be downloaded in the code section, https://github.com/KennyTV/Maintenance/raw/master/Maintenance-API.jar).
+By using MaintenanceBungeeAPI#getAPI or MaintenanceSpigotAPI#getAPI (depending on what server you are using the plugin) you can get some base methods. A rough documentation can be found here https://github.com/KennyTV/Maintenance/tree/master/Maintenance-API/src/main/java/eu/kennytv/maintenance/api

pom.xml

@@ -0,0 +1,65 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>eu.kennytv</groupId>
+    <artifactId>maintenance-base</artifactId>
+    <version>2.5.2</version>
+    <name>Maintenance</name>
+    <packaging>pom</packaging>
+
+    <modules>
+        <module>maintenance-parent</module>
+        <module>maintenance-core</module>
+        <module>maintenance-spigot</module>
+        <module>maintenance-bungee</module>
+        <module>maintenance-api</module>
+    </modules>
+
+    <properties>
+        <plugin.java>1.8</plugin.java>
+        <maven.compiler.target>${plugin.java}</maven.compiler.target>
+        <maven.compiler.source>${plugin.java}</maven.compiler.source>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <build>
+        <defaultGoal>clean package</defaultGoal>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-shade-plugin</artifactId>
+                <version>3.2.1</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>shade</goal>
+                        </goals>
+                        <configuration>
+                            <relocations>
+                                <relocation>
+                                    <pattern>com.zaxxer.hikari</pattern>
+                                    <shadedPattern>eu.kennytv.lib.hikari</shadedPattern>
+                                </relocation>
+                                <!--<relocation>
+                                    <pattern>org.slf4j</pattern>
+                                    <shadedPattern>eu.kennytv.lib.slf4j</shadedPattern>
+                                </relocation>-->
+                            </relocations>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+        <finalName>${project.name}</finalName>
+        <resources>
+            <resource>
+                <directory>src/main/resources</directory>
+                <filtering>true</filtering>
+            </resource>
+        </resources>
+    </build>
+</project>