Hi, I'm testing an upgrade from XE 1.7M1 to XE 1.8.1 incl. XEM. My environment: JBoss 1.4.1, XE 1.8.1 No matter which Wiki page is addressed i got a few errors at console and server.log per page: 13:40:25,802 ERROR [BaseCollection] Failed to get class [internal] from wiki [xwiki] java.lang.NullPointerException Has someone the same problem? Thanks, Rudolf -- View this message in context: http://n2.nabble.com/ERROR--BaseCollection--Failed-to-get-class--internal--f... Sent from the XWiki- Users mailing list archive at Nabble.com.