Remove guava dependency

common/build.gradle.kts

@@ -22,7 +22,6 @@ dependencies {
   compileOnlyApi(libs.checkerQual)
   compileOnlyApi(libs.gson)
   testImplementation(libs.gson)
-  compileOnlyApi(libs.guava)
 }
 
 sourceSets.main {

common/src/main/java/xyz/jpenilla/minimotd/common/config/ConfigManager.java

@@ -23,11 +23,12 @@
  */
 package xyz.jpenilla.minimotd.common.config;
 
-import com.google.common.collect.ImmutableList;
 import java.io.IOException;
 import java.net.InetSocketAddress;
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.util.Arrays;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -109,10 +110,10 @@ public final class ConfigManager {
   }
 
   private void createDefaultExtraConfigs(final @NonNull Path extraConfigsDir) throws ConfigurateException {
-    final List<Pair<Path, MiniMOTDConfig.MOTD>> defaults = ImmutableList.of(
+    final List<Pair<Path, MiniMOTDConfig.MOTD>> defaults = Collections.unmodifiableList(Arrays.asList(
       pair(extraConfigsDir.resolve("skyblock.conf"), new MiniMOTDConfig.MOTD("<green><italic>Skyblock</green>", "<bold><rainbow>MiniMOTD Skyblock Server")),
       pair(extraConfigsDir.resolve("survival.conf"), new MiniMOTDConfig.MOTD("<gradient:blue:red>Survival Mode Hardcore", "<green><bold>MiniMOTD Survival Server"))
-    );
+    ));
     for (final Pair<Path, MiniMOTDConfig.MOTD> pair : defaults) {
       final ConfigLoader<MiniMOTDConfig> loader = new ConfigLoader<>(
         MiniMOTDConfig.class,

common/src/main/java/xyz/jpenilla/minimotd/common/util/UpdateChecker.java

@@ -23,14 +23,14 @@
  */
 package xyz.jpenilla.minimotd.common.util;
 
-import com.google.common.base.Charsets;
-import com.google.common.collect.ImmutableList;
 import com.google.gson.JsonArray;
 import com.google.gson.JsonParser;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.net.URL;
+import java.nio.charset.StandardCharsets;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.LinkedHashMap;
 import java.util.LinkedList;
@@ -45,7 +45,7 @@ public final class UpdateChecker {
   public @NonNull List<String> checkVersion() {
     final JsonArray result;
     final String url = String.format("https://api.github.com/repos/%s/%s/releases", Constants.PluginMetadata.GITHUB_USER, Constants.PluginMetadata.GITHUB_REPO);
-    try (final InputStream is = new URL(url).openStream(); InputStreamReader reader = new InputStreamReader(is, Charsets.UTF_8)) {
+    try (final InputStream is = new URL(url).openStream(); InputStreamReader reader = new InputStreamReader(is, StandardCharsets.UTF_8)) {
       result = this.parser.parse(reader).getAsJsonArray();
     } catch (final IOException ex) {
       return Collections.singletonList("Cannot look for updates: " + ex.getMessage());
@@ -58,13 +58,13 @@ public final class UpdateChecker {
       return Collections.emptyList(); // Up to date, do nothing
     }
     if (currentVersion.contains("SNAPSHOT")) {
-      return ImmutableList.of(
+      return Arrays.asList(
         "This server is running a development build of " + Constants.PluginMetadata.NAME + "! (" + currentVersion + ")",
         "The latest official release is " + versionList.get(0)
       );
     }
     final int versionsBehind = versionList.indexOf(currentVersion);
-    return ImmutableList.of(
+    return Arrays.asList(
       "There is an update available for " + Constants.PluginMetadata.NAME + "!",
       "This server is running version " + currentVersion + ", which is " + (versionsBehind == -1 ? "UNKNOWN" : versionsBehind) + " versions outdated.",
       "Download the latest version, " + versionList.get(0) + " from GitHub at the link below:",

gradle/libs.versions.toml

@@ -19,7 +19,6 @@ configurate = "4.1.2"
 checkerQual = "3.38.0"
 slf4j = "1.7.32"
 gson = "2.8.0"
-guava = "21.0"
 bstats = "3.0.2"
 paperApi = "1.16.5-R0.1-SNAPSHOT"
 paperlib = "1.0.8-SNAPSHOT"
@@ -50,7 +49,6 @@ slf4jApi = { group = "org.slf4j", name = "slf4j-api", version.ref = "slf4j" }
 slf4jJdk14 = { group = "org.slf4j", name = "slf4j-jdk14", version.ref = "slf4j" }
 
 gson = { group = "com.google.code.gson", name = "gson", version.ref = "gson" }
-guava = { group = "com.google.guava", name = "guava", version.ref = "guava" }
 
 bstatsBukkit = { group = "org.bstats", name = "bstats-bukkit", version.ref = "bstats" }
 bstatsBungeecord = { group = "org.bstats", name = "bstats-bungeecord", version.ref = "bstats" }