A WebDAV LOCK_REFRESH request may cause a NullPointerException because of an (IMHO) wrong check at line 1332 in WebdavServlet.java 1056763 2011-01-08 18:56:57Z markt. I suggest line 1332 should be: ... if (toRenew != null) { ...
Created attachment 27140 [details] Proposed patch for Tomcat 6
Thanks for the report and the analysis. The patch has been proposed for 6.0.x
Thanks again. This has been fixed in 6.0.x and will be included in 6.0.33 onwards.