src/java.desktop/share/classes/java/awt/SequencedEvent.java

*** 104,120 ****
--- 104,122 ----
          try {
              appContext = AppContext.getAppContext();
  
              if (getFirst() != this) {
                  if (EventQueue.isDispatchThread()) {
+                     if (Thread.currentThread() instanceof EventDispatchThread) {
                          EventDispatchThread edt = (EventDispatchThread)
                                  Thread.currentThread();
                          edt.pumpEvents(SentEvent.ID, new Conditional() {
                              public boolean evaluate() {
                                  return !SequencedEvent.this.isFirstOrDisposed();
                              }
                          });
+                     }
                  } else {
                      while(!isFirstOrDisposed()) {
                          synchronized (SequencedEvent.class) {
                              try {
                                  SequencedEvent.class.wait(1000);