Updated to Minecraft version 1.2.4. Updated version string to 1.2.4-R0.1.

src/main/java/net/minecraft/server/BlockPortal.java

@@ -166,7 +166,7 @@ public class BlockPortal extends BlockHalfTransparant {
             world.getServer().getPluginManager().callEvent(event);
             // CraftBukkit end
 
-            entity.ac();
+            entity.ad();
         }
     }
 }