--- old/src/macosx/classes/sun/lwawt/LWLightweightFramePeer.java	2013-09-04 12:42:09.570736200 +0400
+++ new/src/macosx/classes/sun/lwawt/LWLightweightFramePeer.java	2013-09-04 12:42:09.383535900 +0400
@@ -25,6 +25,10 @@
 
 package sun.lwawt;
 
+import sun.awt.CausedFocusEvent;
+import sun.awt.LightweightFrame;
+import sun.awt.LightweightFramePeer;
+
 import java.awt.Graphics;
 import java.awt.Insets;
 import java.awt.Point;
@@ -32,10 +36,8 @@
 import java.awt.Window;
 import java.awt.dnd.DropTarget;
 
-import sun.awt.CausedFocusEvent;
-import sun.awt.LightweightFrame;
 
-public class LWLightweightFramePeer extends LWWindowPeer {
+public class LWLightweightFramePeer extends LWWindowPeer implements LightweightFramePeer {
 
     public LWLightweightFramePeer(LightweightFrame target,
                                   PlatformComponent platformComponent,
@@ -91,11 +93,6 @@
     }
 
     @Override
-    public void updateCursorImmediately() {
-        // TODO: tries to switch to the awt/fx toolkit thread and causes a deadlock on macosx
-    }
-
-    @Override
     public void addDropTarget(DropTarget dt) {
     }
 
@@ -112,4 +109,14 @@
     public void ungrab() {
         getLwTarget().ungrabFocus();
     }
+
+    @Override
+    public void setLightweightFrameUnderMouse() {
+        setLastCommonMouseEventPeer(this);
+    }
+
+    @Override
+    public boolean cleanLightweightFrameUnderMouse() {
+        return cleanLastCommonMouseEventPeer(this);
+    }
 }