[Bleeding] getHandlers() is now abstract.

By: Feildmaster <admin@feildmaster.com>

paper-api/src/main/java/org/bukkit/event/Event.java

@@ -16,9 +16,7 @@ public abstract class Event {
         return name;
     }
 
-    public HandlerList getHandlers() {
-        throw new IllegalStateException(getEventName() + " must implement getHandlers()");
-    }
+    public abstract HandlerList getHandlers();
 
     public enum Result {