fix config hung up the thread

src/main/java/com/github/glodblock/extendedae/mixins/config/MixinConfiguration.java

@@ -0,0 +1,29 @@
+package com.github.glodblock.extendedae.mixins.config;
+
+import com.github.glodblock.extendedae.util.mixinutil.IConfigStop;
+import dev.toma.configuration.Configuration;
+import dev.toma.configuration.config.io.ConfigIO;
+import net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents;
+import net.minecraft.server.dedicated.DedicatedServer;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(Configuration.class)
+public abstract class MixinConfiguration {
+
+    @Inject(
+            method = "<init>",
+            at = @At("TAIL"),
+            remap = false
+    )
+    private void stopServer(CallbackInfo ci) {
+        ServerLifecycleEvents.SERVER_STOPPING.register(server -> {
+            if (server instanceof DedicatedServer) {
+                ((IConfigStop) (Object) ConfigIO.FILE_WATCH_MANAGER).extendedae_$stop();
+            }
+        });
+    }
+
+}

src/main/java/com/github/glodblock/extendedae/mixins/config/MixinFileWatchManager.java

@@ -0,0 +1,36 @@
+package com.github.glodblock.extendedae.mixins.config;
+
+import com.github.glodblock.extendedae.util.mixinutil.IConfigStop;
+import dev.toma.configuration.config.io.FileWatchManager;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.Unique;
+
+import java.io.IOException;
+import java.nio.file.WatchService;
+import java.util.concurrent.ScheduledExecutorService;
+
+@Mixin(FileWatchManager.class)
+public abstract class MixinFileWatchManager implements IConfigStop {
+
+    @Final
+    @Shadow(remap = false)
+    private WatchService service;
+
+    @Final
+    @Shadow(remap = false)
+    private ScheduledExecutorService executorService;
+
+    @Unique
+    @Override
+    public void extendedae_$stop() {
+        try {
+            executorService.shutdown();
+            service.close();
+        } catch (IOException e) {
+            throw new IllegalStateException("Error while stopping FileWatch service", e);
+        }
+    }
+
+}

src/main/java/com/github/glodblock/extendedae/util/mixinutil/IConfigStop.java

@@ -0,0 +1,7 @@
+package com.github.glodblock.extendedae.util.mixinutil;
+
+public interface IConfigStop {
+
+    void extendedae_$stop();
+
+}

src/main/resources/extendedae.mixins.json

@@ -4,7 +4,9 @@
   "compatibilityLevel": "JAVA_17",
   "mixins": [
     "MixinInitUpgrades",
-    "MixinPatternAccessTermMenu"
+    "MixinPatternAccessTermMenu",
+    "config.MixinConfiguration",
+    "config.MixinFileWatchManager"
   ],
   "injectors": {
     "defaultRequire": 1