Hi, I'm working with JBoss since 2 months. Currently I've got a JBoss 4.2.3 AS running. It implements the JBoss Cache 1.4.1.SP9. Moreover I'm using Hibernate 3.2.4.sp1. Now I want to improve the performance of my J2EE Application. So I want to replace JBoss Cache 1.4.1.SP9 with JBoss Cache 3.2.0 Malagueta and use the second level cache. My Questions now are: Must I first remove the jars from JBoss Cache 1.4.1.SP9 before I put the JBoss Cache 3.2.0 jars into the JBoss lib-directory? What else do I have to do, that JBoss Cache 3.2.0 works fine (which changes in which files)? How can I test if everything is correctly installed and works in the right way? Please don't suggest to go up to JBoss 5 AS because this is currently impossible. Thanks in advance. Tom View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4251825#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...