Temporary fix for #13

src/org/apollo/game/message/MessageHandlerChainSet.java

@@ -21,15 +21,20 @@ public final class MessageHandlerChainSet {
 
 	/**
 	 * Notifies the appropriate {@link MessageHandlerChain} that a {@link Message} has been received.
-	 * 
+	 *
 	 * @param player The {@link Player} receiving the Message.
 	 * @param message The Message.
 	 * @return {@code true} if the Message propagated down the chain without being terminated or if the chain for the
 	 *         Message was not found, otherwise {@code false}.
 	 */
+	@SuppressWarnings("unchecked")
 	public <M extends Message> boolean notify(Player player, M message) {
-		@SuppressWarnings("unchecked")
-		MessageHandlerChain<M> chain = (MessageHandlerChain<M>) chains.get(message.getClass());
+		Class<M> clazz = (Class<M>) message.getClass();
+		while (clazz.getSuperclass() != Message.class) {
+			clazz = (Class<M>) clazz.getSuperclass();
+		}
+
+		MessageHandlerChain<M> chain = (MessageHandlerChain<M>) chains.computeIfAbsent(clazz, MessageHandlerChain::new);
 		return chain == null || chain.notify(player, message);
 	}
 

src/org/apollo/io/MessageHandlerChainSetParser.java

@@ -48,6 +48,7 @@ public final class MessageHandlerChainSetParser {
 	 * @throws SAXException If a SAX error occurs.
 	 * @throws ReflectiveOperationException If a reflection error occurs.
 	 */
+	@SuppressWarnings("unchecked")
 	public MessageHandlerChainSet parse(World world) throws IOException, SAXException, ReflectiveOperationException {
 		XmlNode messages = parser.parse(is);
 		if (!messages.getName().equals("messages")) {
@@ -75,7 +76,6 @@ public final class MessageHandlerChainSetParser {
 				throw new IOException("Type node must have a value.");
 			}
 
-			@SuppressWarnings("unchecked")
 			Class<? extends Message> messageClass = (Class<? extends Message>) Class.forName(messageClassName);
 
 			for (XmlNode handlerNode : chainNode) {
@@ -88,7 +88,6 @@ public final class MessageHandlerChainSetParser {
 					throw new IOException("Handler node must have a value.");
 				}
 
-				@SuppressWarnings("unchecked")
 				Class<? extends MessageHandler<? extends Message>> handlerClass = (Class<? extends MessageHandler<? extends Message>>) Class.forName(handlerClassName);
 				MessageHandler<? extends Message> handler = handlerClass.getConstructor(World.class).newInstance(world);
 				chainSet.putHandler(messageClass, handler);