}
} catch (LockFailedException e) {
sendLockFailError(req, resp);
} catch (WebdavException e) {
resp.sendError(WebdavStatus.SC_INTERNAL_SERVER_ERROR);
logger.error(e, new TextI18n("Webdav exception"));
} catch (ServletException e) {
resp.sendError(WebdavStatus.SC_INTERNAL_SERVER_ERROR);
logger.error(e, new TextI18n("Servlet exception"));
} finally {
parentSo = null;
nullSo = null;
}
}