--- old/src/macosx/classes/sun/lwawt/macosx/CDropTarget.java	2013-07-11 13:02:54.000000000 +0400
+++ new/src/macosx/classes/sun/lwawt/macosx/CDropTarget.java	2013-07-11 13:02:54.000000000 +0400
@@ -52,6 +52,8 @@
         fPeer = peer;
 
         long nativePeer = CPlatformWindow.getNativeViewPtr(((LWComponentPeer) peer).getPlatformWindow());
+        if (nativePeer == 0L) return; // Unsupported
+
         // Create native dragging destination:
         fNativeDropTarget = this.createNativeDropTarget(dropTarget, component, peer, nativePeer);
         if (fNativeDropTarget == 0) {