src/share/classes/sun/awt/AWTAutoShutdown.java

*** 230,244 ****
       * <code>peerMap</code> is empty and <code>toolkitThreadBusy</code>
       * is false and <code>busyThreadSet</code> is empty.
       *
       * @return true if AWT is in ready-to-shutdown state.
       */
!     private boolean isReadyToShutdown() {
          return (!toolkitThreadBusy &&
                   peerMap.isEmpty() &&
                   busyThreadSet.isEmpty());
      }
  
      /**
       * Notify about the toolkit thread state change.
       *
       * @param busy true if the toolkit thread state changes from idle
--- 230,250 ----
       * <code>peerMap</code> is empty and <code>toolkitThreadBusy</code>
       * is false and <code>busyThreadSet</code> is empty.
       *
       * @return true if AWT is in ready-to-shutdown state.
       */
!     public boolean isReadyToShutdown() {
!         // We need to synchronize here since the method is public.
!         // The peerMap states it wants activationLock as well,
!         // but run() doesn't use it when calling this method,
!         // so we won't either.
!         synchronized (mainLock) {
              return (!toolkitThreadBusy &&
                      peerMap.isEmpty() &&
                      busyThreadSet.isEmpty());
          }
+     }
  
      /**
       * Notify about the toolkit thread state change.
       *
       * @param busy true if the toolkit thread state changes from idle