Switch to JSpecify nullness annotations

build.gradle.kts

@@ -54,7 +54,7 @@ dependencies {
         exclude("com.google.code.gson", "gson")
     }
 
-    compileOnly("org.checkerframework", "checker-qual", "3.49.5")
+    compileOnly("org.jspecify:jspecify:1.0.0")
     compileOnly("dev.folia", "folia-api", "1.19.4-R0.1-SNAPSHOT")
     compileOnly("me.clip", "placeholderapi", "2.11.6")
 }

src/main/java/xyz/jpenilla/pluginbase/legacy/Chat.java

@@ -1,11 +1,5 @@
 package xyz.jpenilla.pluginbase.legacy;
 
-import java.time.Duration;
-import java.time.temporal.ChronoUnit;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-import java.util.concurrent.ThreadLocalRandom;
 import net.kyori.adventure.key.Key;
 import net.kyori.adventure.sound.Sound;
 import net.kyori.adventure.text.Component;
@@ -15,12 +9,18 @@ import org.bukkit.Bukkit;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 import org.bukkit.scheduler.BukkitTask;
-import org.checkerframework.checker.nullness.qual.NonNull;
-import org.checkerframework.checker.nullness.qual.Nullable;
-import org.checkerframework.framework.qual.DefaultQualifier;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;
 import xyz.jpenilla.pluginbase.legacy.compatability.PlaceholderAPIHook;
 
-@DefaultQualifier(NonNull.class)
+import java.time.Duration;
+import java.time.temporal.ChronoUnit;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ThreadLocalRandom;
+
+@NullMarked
 @SuppressWarnings("unused")
 public class Chat {
     private final PluginBase plugin;

src/main/java/xyz/jpenilla/pluginbase/legacy/ChatCentering.java

@@ -2,7 +2,7 @@ package xyz.jpenilla.pluginbase.legacy;
 
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer;
-import org.checkerframework.checker.nullness.qual.NonNull;
+import org.jspecify.annotations.NonNull;
 
 public final class ChatCentering {
     private ChatCentering() {

src/main/java/xyz/jpenilla/pluginbase/legacy/ComponentUtil.java

@@ -3,10 +3,9 @@ package xyz.jpenilla.pluginbase.legacy;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.format.TextDecoration;
 import net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer;
-import org.checkerframework.checker.nullness.qual.NonNull;
-import org.checkerframework.framework.qual.DefaultQualifier;
+import org.jspecify.annotations.NullMarked;
 
-@DefaultQualifier(NonNull.class)
+@NullMarked
 public final class ComponentUtil {
     private static final LegacyComponentSerializer SERIALIZER = LegacyComponentSerializer.builder()
             .hexColors()

src/main/java/xyz/jpenilla/pluginbase/legacy/Crafty.java

@@ -23,15 +23,16 @@
  */
 package xyz.jpenilla.pluginbase.legacy;
 
+import org.bukkit.Bukkit;
+import org.checkerframework.common.reflection.qual.ForName;
+import org.jspecify.annotations.NonNull;
+import org.jspecify.annotations.Nullable;
+
 import java.lang.invoke.MethodHandle;
 import java.lang.invoke.MethodHandles;
 import java.lang.invoke.MethodType;
 import java.lang.reflect.Field;
 import java.util.Arrays;
-import org.bukkit.Bukkit;
-import org.checkerframework.checker.nullness.qual.NonNull;
-import org.checkerframework.checker.nullness.qual.Nullable;
-import org.checkerframework.common.reflection.qual.ForName;
 
 import static java.util.Objects.requireNonNull;
 

src/main/java/xyz/jpenilla/pluginbase/legacy/Environment.java

@@ -1,11 +1,11 @@
 package xyz.jpenilla.pluginbase.legacy;
 
-import java.lang.reflect.Method;
 import org.bukkit.Bukkit;
-import org.checkerframework.checker.nullness.qual.NonNull;
-import org.checkerframework.framework.qual.DefaultQualifier;
+import org.jspecify.annotations.NullMarked;
 
-@DefaultQualifier(NonNull.class)
+import java.lang.reflect.Method;
+
+@NullMarked
 public class Environment {
     private static final boolean paper;
     private static final int majorMinecraftVersion;

src/main/java/xyz/jpenilla/pluginbase/legacy/InputConversation.java

@@ -1,10 +1,6 @@
 package xyz.jpenilla.pluginbase.legacy;
 
 import com.google.common.base.Preconditions;
-import java.util.function.BiConsumer;
-import java.util.function.BiFunction;
-import java.util.function.BiPredicate;
-import java.util.function.Function;
 import org.bukkit.conversations.BooleanPrompt;
 import org.bukkit.conversations.ConversationAbandonedListener;
 import org.bukkit.conversations.ConversationContext;
@@ -13,11 +9,15 @@ import org.bukkit.conversations.Prompt;
 import org.bukkit.conversations.StringPrompt;
 import org.bukkit.entity.Player;
 import org.bukkit.plugin.Plugin;
-import org.checkerframework.checker.nullness.qual.NonNull;
-import org.checkerframework.checker.nullness.qual.Nullable;
-import org.checkerframework.framework.qual.DefaultQualifier;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;
 
-@DefaultQualifier(NonNull.class)
+import java.util.function.BiConsumer;
+import java.util.function.BiFunction;
+import java.util.function.BiPredicate;
+import java.util.function.Function;
+
+@NullMarked
 public class InputConversation {
     private final Plugin plugin;
 

src/main/java/xyz/jpenilla/pluginbase/legacy/MiniMessageUtil.java

@@ -1,13 +1,13 @@
 package xyz.jpenilla.pluginbase.legacy;
 
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer;
+import org.jspecify.annotations.NullMarked;
+
 import java.util.ArrayList;
 import java.util.List;
-import net.kyori.adventure.text.Component;
-import net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer;
-import org.checkerframework.checker.nullness.qual.NonNull;
-import org.checkerframework.framework.qual.DefaultQualifier;
 
-@DefaultQualifier(NonNull.class)
+@NullMarked
 public final class MiniMessageUtil {
     private MiniMessageUtil() {
     }

src/main/java/xyz/jpenilla/pluginbase/legacy/PaperComponentUtil.java

@@ -1,14 +1,14 @@
 package xyz.jpenilla.pluginbase.legacy;
 
 import com.google.gson.JsonElement;
-import java.lang.reflect.Method;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.serializer.gson.GsonComponentSerializer;
-import org.checkerframework.checker.nullness.qual.NonNull;
-import org.checkerframework.checker.nullness.qual.Nullable;
-import org.checkerframework.framework.qual.DefaultQualifier;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;
 
-@DefaultQualifier(NonNull.class)
+import java.lang.reflect.Method;
+
+@NullMarked
 public final class PaperComponentUtil {
     private static final String KYORI_PREFIX = String.join(".", "net", "kyori");
     private static final @Nullable Object NATIVE_GSON;

src/main/java/xyz/jpenilla/pluginbase/legacy/PluginBase.java

@@ -1,19 +1,20 @@
 package xyz.jpenilla.pluginbase.legacy;
 
 import io.papermc.paper.threadedregions.RegionizedServerInitEvent;
-import java.nio.file.Path;
-import java.util.Queue;
-import java.util.concurrent.ConcurrentLinkedQueue;
 import net.kyori.adventure.platform.bukkit.BukkitAudiences;
 import net.kyori.adventure.text.minimessage.MiniMessage;
 import org.bukkit.Bukkit;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 import org.bukkit.plugin.java.JavaPlugin;
-import org.checkerframework.checker.nullness.qual.NonNull;
-import org.checkerframework.checker.nullness.qual.Nullable;
+import org.jspecify.annotations.NonNull;
+import org.jspecify.annotations.Nullable;
 import xyz.jpenilla.pluginbase.legacy.compatability.PlaceholderAPIHook;
 
+import java.nio.file.Path;
+import java.util.Queue;
+import java.util.concurrent.ConcurrentLinkedQueue;
+
 public abstract class PluginBase extends JavaPlugin {
     private static PluginBase instance;
     private Chat chat;

src/main/java/xyz/jpenilla/pluginbase/legacy/TextUtil.java

@@ -1,7 +1,7 @@
 package xyz.jpenilla.pluginbase.legacy;
 
-import org.checkerframework.checker.nullness.qual.NonNull;
-import org.checkerframework.checker.nullness.qual.Nullable;
+import org.jspecify.annotations.NonNull;
+import org.jspecify.annotations.Nullable;
 
 import java.util.ArrayList;
 import java.util.List;

src/main/java/xyz/jpenilla/pluginbase/legacy/compatability/PlaceholderAPIHook.java

@@ -2,10 +2,9 @@ package xyz.jpenilla.pluginbase.legacy.compatability;
 
 import me.clip.placeholderapi.PlaceholderAPI;
 import org.bukkit.entity.Player;
-import org.checkerframework.checker.nullness.qual.NonNull;
-import org.checkerframework.framework.qual.DefaultQualifier;
+import org.jspecify.annotations.NullMarked;
 
-@DefaultQualifier(NonNull.class)
+@NullMarked
 public final class PlaceholderAPIHook {
     public String replacePlaceholders(final Player player, final String msg) {
         return PlaceholderAPI.setPlaceholders(player, msg);