assertNull( as.listeners );
assertNull( ActivityTestUtil.getActivityListener( as ) );
	public void testDispose( )	{		MyActivityStackListener listener = new MyActivityStackListener( );		as.addListener( listener );		as.execute( record );		as.undo( );		as.startTrans( );		as.clearListeners( );		as.flush( );		assertFalse( as.canRedo( ) );		assertFalse( as.canUndo( ) );		assertEquals( 0, as.getRecords( ).length );		assertNull( as.listeners );	}