src/java.desktop/macosx/native/libosxapp/ThreadUtilities.m

*** 71,83 ****
      appkitThreadGroup = group;
  }
  
  + (void)performOnMainThreadWaiting:(BOOL)wait block:(void (^)())block {
      if ([NSThread isMainThread] && wait == YES) {
!         block(); 
!     } else { 
!         [JNFRunLoop performOnMainThreadWaiting:wait withBlock:block]; 
      }
  }
  
  + (void)performOnMainThread:(SEL)aSelector on:(id)target withObject:(id)arg waitUntilDone:(BOOL)wait {
      if ([NSThread isMainThread] && wait == YES) {
--- 71,83 ----
      appkitThreadGroup = group;
  }
  
  + (void)performOnMainThreadWaiting:(BOOL)wait block:(void (^)())block {
      if ([NSThread isMainThread] && wait == YES) {
!         block();
!     } else {
!         [JNFRunLoop performOnMainThreadWaiting:wait withBlock:block];
      }
  }
  
  + (void)performOnMainThread:(SEL)aSelector on:(id)target withObject:(id)arg waitUntilDone:(BOOL)wait {
      if ([NSThread isMainThread] && wait == YES) {