src/share/classes/java/awt/Window.java

*** 1198,1207 ****
--- 1198,1208 ----
              } finally {
                  disposing = false;
              }
          }
      }
+         boolean fireWindowClosedEvent = isDisplayable();
          DisposeAction action = new DisposeAction();
          if (EventQueue.isDispatchThread()) {
              action.run();
          }
          else {
*** 1218,1229 ****
--- 1219,1232 ----
              }
          }
          // Execute outside the Runnable because postWindowEvent is
          // synchronized on (this). We don't need to synchronize the call
          // on the EventQueue anyways.
+         if (fireWindowClosedEvent) {
              postWindowEvent(WindowEvent.WINDOW_CLOSED);
          }
+     }
  
      /*
       * Should only be called while holding the tree lock.
       * It's overridden here because parent == owner in Window,
       * and we shouldn't adjust counter on owner