fix(EventExecutor, ModuleExecutorImpl): implement DisposableBean interface and manage executor shutdown

src/main/java/de/extio/game_engine/event/EventExecutor.java

@@ -12,15 +12,16 @@ import java.util.function.Consumer;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.DisposableBean;
 
-public class EventExecutor {
+public class EventExecutor implements DisposableBean {
 	
 	private static final Logger LOGGER = LoggerFactory.getLogger(EventExecutor.class);
-	private static final ExecutorService EXECUTOR = Executors.newVirtualThreadPerTaskExecutor();
+	
+	private final ExecutorService executor = Executors.newFixedThreadPool(4); //Executors.newVirtualThreadPerTaskExecutor();
 	
 	private final BlockingQueue<QueuedEvent> eventQueue = new LinkedBlockingQueue<>();
 	
-	@SuppressWarnings("unused")
 	private final Thread processorThread;
 	
 	private final EventHandlerRegistry registry;
@@ -45,6 +46,12 @@ public class EventExecutor {
 				});
 	}
 
+	@Override
+	public void destroy() throws Exception {
+		this.processorThread.interrupt();
+		this.executor.shutdownNow();
+	}
+	
 	public void submit(final Event event) {
 		this.eventQueue.offer(new QueuedEvent(event.getClass(), event));
 	}
@@ -79,7 +86,7 @@ public class EventExecutor {
 						});
 					}
 					try {
-						for (final var future : EXECUTOR.invokeAll(tasks)) {
+						for (final var future : executor.invokeAll(tasks)) {
 							try {
 								future.get();
 							}

src/main/java/de/extio/game_engine/module/ModuleExecutorImpl.java

@@ -10,11 +10,13 @@ import java.util.function.Function;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.DisposableBean;
 
-public class ModuleExecutorImpl implements ModuleExecutor {
+public class ModuleExecutorImpl implements ModuleExecutor, DisposableBean {
 	
 	private static final Logger LOGGER = LoggerFactory.getLogger(ModuleExecutorImpl.class);
-	private static final ExecutorService EXECUTOR = Executors.newVirtualThreadPerTaskExecutor();
+	
+	private final ExecutorService executor = Executors.newFixedThreadPool(4); // Executors.newVirtualThreadPerTaskExecutor();
 	
 	private final ModuleService moduleManager;
 	
@@ -22,6 +24,11 @@ public class ModuleExecutorImpl implements ModuleExecutor {
 		this.moduleManager = moduleManager;
 	}
 
+	@Override
+	public void destroy() throws Exception {
+		this.executor.shutdownNow();	
+	}
+	
 	@Override
 	public void execute() {
 		this.runTasks(ModuleExecutorCallbacks.UI_PRE, module -> () -> {
@@ -72,7 +79,7 @@ public class ModuleExecutorImpl implements ModuleExecutor {
 		}
 
 		try {
-			EXECUTOR.invokeAll(tasks);
+			executor.invokeAll(tasks);
 		}
 		catch (final InterruptedException e) {
 			Thread.currentThread().interrupt();