if (lockFile != null) {
if (lockFile != null)
	public synchronized void release() {		try {			if (lockRAF != null) {				lockRAF.close();				lockRAF = null;			}		} catch (IOException e) {			//don't complain, we're making a best effort to clean up		}		if (lockFile != null) {			lockFile.delete();			lockFile = null;		}	}