logger.warning( "Failed to remove one or more file in temp db directory: " + dbDir );
assert dbDirFile != null; dbDirFile.deleteOnExit( ); logger.info( "Fail to remove one or more file in temp db directory,but it will be removed when the VM exits: " + dbDir );
	private void removeDatabase()	{		logger.info( "Removing Sampledb DB directory at location " + dbDir );		// recursively delete the DB directory		if ( ! removeDirectory( new File(dbDir) ))		{			logger.warning( "Failed to remove one or more file in temp db directory: " + dbDir );		}	}