src/macosx/classes/com/apple/eawt/_AppEventHandler.java

*** 155,165 ****
                          frame.dispatchEvent(new WindowEvent(frame, WindowEvent.WINDOW_CLOSING));
                      }
                  }
              });
          } finally {
!             nativeReplyToAppShouldTerminate(true);
          }
      }
  
      /*
       * callbacks from native delegate
--- 155,168 ----
                          frame.dispatchEvent(new WindowEvent(frame, WindowEvent.WINDOW_CLOSING));
                      }
                  }
              });
          } finally {
!             // Either we've just called System.exit(), or the app will call
!             // it when processing a WINDOW_CLOSING event. Either way, we reply
!             // to Cocoa that we don't want to exit the event loop yet.
!             nativeReplyToAppShouldTerminate(false);
          }
      }
  
      /*
       * callbacks from native delegate