return;
}
lockToken = lockToken.substring(0, lockToken.length() - 1);
DAVResource resource = getRequestedDAVResource(false, false);
DAVResourceState resourceState = getResourceState(resource);
validateRequest(resource, DAVDepth.DEPTH_ZERO, resourceState == DAVResourceState.LOCK_NULL ?
ServletDAVHandler.DAV_VALIDATE_PARENT : ServletDAVHandler.DAV_VALIDATE_RESOURCE, null, lockToken, null);
unlock(resource, lockToken);
setResponseStatus(HttpServletResponse.SC_NO_CONTENT);