if (token != null) LockMgr.getInstance().deleteLock(token);
if (token != null) {    int len = token.length(); if (token.charAt(0) == '<' && token.charAt(len-1) == '>') LockMgr.getInstance().deleteLock(ctxt, token.substring(1, len-1)); }
	public void handle(DavContext ctxt) throws DavException, IOException {		String token = ctxt.getRequest().getHeader(DavProtocol.HEADER_LOCK_TOKEN);		if (token != null)			LockMgr.getInstance().deleteLock(token);		ctxt.getResponse().setStatus(HttpServletResponse.SC_NO_CONTENT);	}