This should be on the dev-list. Please stop sending me private e-mails about opensource development. -------- Forwarded Message -------- From: Adrian Brock <abrock(a)redhat.com&gt; To: Brian Stansberry <brian.stansberry(a)redhat.com&gt; Cc: Thomas Diesler <thomas.diesler(a)jboss.com&gt;, Jason T. Greene <jason.greene(a)redhat.com&gt;, Ales Justin <ajustin(a)redhat.com&gt;, Thomas Diesler <tdiesler(a)redhat.com&gt;, Jason Greene <jgreene(a)redhat.com&gt;, Carlo de Wolf <cdewolf(a)redhat.com&gt; Subject: Re: [jboss-dev] Possible blocker with jboss-cl 2.2.0.Alpha1 [WAS]: Hudson Jobs Hanging Date: Tue, 09 Feb 2010 11:50:10 +0100 On Mon, 2010-02-08 at 22:02 -0600, Brian Stansberry wrote: This behaviour hasn't changed between 2.0.x and 2.2.x In both cases you'd be trying to load a class from a classloader that has been shutdown. The only thing I can think has changed is previously BaseClassLoader was incorrectly throwing IllegalStateException instead of ClassNotFoundException. https://jira.jboss.org/jira/browse/JBCL-138 http://viewvc.jboss.org/cgi-bin/viewvc.cgi/jbossas/projects/jboss-cl/trun... There is however a change in behaviour since jboss-4.2.x in that you could always load java.lang.* classes even when the classloader was shutdown. This was because of a shortcut in the old UCL classloader: http://viewvc.jboss.org/cgi-bin/viewvc.cgi/jbossas/branches/Branch_4_2/jm... to workaround this problem: https://jira.jboss.org/jira/browse/JBAS-4536 which doesn't exist with the new classloader when correctly configured. I can restore the 4.2.x behaviour, but I don't think it is the real problem? In both examples on JBAS-7688, it would still fail if it tried to load a common/lib class at that point, e.g. javax.ejb.* or any other class not in the classloader that is shutdown. -- xxxxxxxxxxxxxxxxxxxxx Adrian Brock Chief Scientist JBoss by Redhat xxxxxxxxxxxxxxxxxxxxx