src/macosx/native/sun/awt/AWTWindow.m

*** 318,327 ****
--- 318,328 ----
      return [window isKindOfClass: [AWTWindow_Panel class]] || [window isKindOfClass: [AWTWindow_Normal class]];
  }
  
  // return id for the topmost window under mouse
  + (NSInteger) getTopmostWindowUnderMouseID {
+     NSInteger result = -1;
      
      NSRect screenRect = [[NSScreen mainScreen] frame];
      NSPoint nsMouseLocation = [NSEvent mouseLocation];
      CGPoint cgMouseLocation = CGPointMake(nsMouseLocation.x, screenRect.size.height - nsMouseLocation.y);
  
*** 332,346 ****
          NSInteger layer = [[window objectForKey:(id)kCGWindowLayer] integerValue];
          if (layer == 0) {
              CGRect rect;
              CGRectMakeWithDictionaryRepresentation((CFDictionaryRef)[window objectForKey:(id)kCGWindowBounds], &rect);
              if (CGRectContainsPoint(rect, cgMouseLocation)) {
!                 return [[window objectForKey:(id)kCGWindowNumber] integerValue];
              }
          }
      }
!     return -1;
  }
  
  // checks that this window is under the mouse cursor and this point is not overlapped by other windows
  - (BOOL) isTopmostWindowUnderMouse {
      return [self.nsWindow windowNumber] == [AWTWindow getTopmostWindowUnderMouseID];
--- 333,349 ----
          NSInteger layer = [[window objectForKey:(id)kCGWindowLayer] integerValue];
          if (layer == 0) {
              CGRect rect;
              CGRectMakeWithDictionaryRepresentation((CFDictionaryRef)[window objectForKey:(id)kCGWindowBounds], &rect);
              if (CGRectContainsPoint(rect, cgMouseLocation)) {
!                 result = [[window objectForKey:(id)kCGWindowNumber] integerValue];
!                 break;
              }
          }
      }
!     [windows release];
!     return result;
  }
  
  // checks that this window is under the mouse cursor and this point is not overlapped by other windows
  - (BOOL) isTopmostWindowUnderMouse {
      return [self.nsWindow windowNumber] == [AWTWindow getTopmostWindowUnderMouseID];