Ok, I spoke too soon about us upgrading to 2.5.0 smoothly. :) Our container includes the shindig artifacts but also relies on Spring and a few other internal libraries. If I startup under Tomcat 7 things are working fine. If I run under Jetty I'm seeing this
2013-08-28 12:59:15,682 ERROR [expressions.datahread] net.sf.ehcache.store.disk.DiskStorageFactory - Disk Write of //%host%${CONTEXT_ROOT}/rpc failed: java.io.NotSerializableException: de.odysseus.el.tree.Tree In the logs (a lot of them) on startup. I'm going through and synching up our web.xml, etc. I do know that we create our own ehcache for another one of our libraries we include. Could be a conflict there. This happened somewhere between beta5 and release. Any pointer on what to look for? I've combed through the release notes. I do see something about configuring ehcache (https://issues.apache.org/jira/browse/SHINDIG-1912). Doug Davies