// same test as above, but while UIThread running

  public void testWaitOnBackgroundThread_DuringLifecycle() throws Exception {

    final Throwable[] uiCallBackServiceHandlerThrowable = { null };

    ServiceContext context = ContextProvider.getContext();

    simulateUiCallBackThread( uiCallBackServiceHandlerThrowable, context );

    assertNull( uiCallBackServiceHandlerThrowable[ 0 ] );

    assertTrue( UICallBackManager.getInstance().isCallBackRequestBlocked() );

    Thread thread = new Thread( new Runnable() {

      public void run() {

        display.wake();

      }

    } );

    // assume that UIThread is currently running the life cycle

    UICallBackManager.getInstance().notifyUIThreadStart();

    thread.start();

    thread.join();

    Thread.sleep( SLEEP_TIME );

    UICallBackManager.getInstance().notifyUIThreadEnd();

    assertFalse( UICallBackManager.getInstance().isCallBackRequestBlocked() );

  }