--- old/src/macosx/native/sun/awt/awt.m	2013-04-12 12:36:04.000000000 +0400
+++ new/src/macosx/native/sun/awt/awt.m	2013-04-12 12:36:04.000000000 +0400
@@ -316,7 +316,10 @@
     // its finishLaunching has initialized it.
     //  ApplicationDelegate is the support code for com.apple.eawt.
     [ThreadUtilities performOnMainThreadWaiting:YES block:^(){
-        OSXAPP_SetApplicationDelegate([ApplicationDelegate sharedDelegate]);
+        id<NSApplicationDelegate> delegate = [ApplicationDelegate sharedDelegate];
+        if (delegate != nil) {
+            OSXAPP_SetApplicationDelegate(delegate);
+        }        
     }];
 }