[Bleeding] Changed event system into a new, much faster design. Huge thanks to @zml2008 & @lahwran.

src/main/java/org/bukkit/event/block/BlockPhysicsEvent.java

@@ -3,12 +3,14 @@ package org.bukkit.event.block;
 import org.bukkit.block.Block;
 import org.bukkit.Material;
 import org.bukkit.event.Cancellable;
+import org.bukkit.event.HandlerList;
 
 /**
  * Thrown when a block physics check is called
  */
 @SuppressWarnings("serial")
 public class BlockPhysicsEvent extends BlockEvent implements Cancellable {
+    private static final HandlerList handlers = new HandlerList();
     private final int changed;
     private boolean cancel = false;
 
@@ -42,4 +44,13 @@ public class BlockPhysicsEvent extends BlockEvent implements Cancellable {
     public void setCancelled(boolean cancel) {
         this.cancel = cancel;
     }
+
+    @Override
+    public HandlerList getHandlers() {
+        return handlers;
+    }
+
+    public static HandlerList getHandlerList() {
+        return handlers;
+    }
 }