when a war has the "distributable" attribute, the org.jboss.web.tomcat.service.session.JBossCacheManager class is used (defined in the jboss4.2.2//deploy\jboss-web.deployer\META-INF ) This class invoke the JbossCacheService, that invoke CacheListener, that invoke.... I believe that this class (or a called one) was deployed to work only with JBoss Cache 1.4.x and so it try to instantiate the org/jboss/cache/TreeCacheListener but under jbosscache 3.0.1 it doesn't exists... Someone know how to fix it ? There is same workaround? Or is really impossible to use Jboss Cache 3.0.1 under JBoss AS 4.2.2 having a distributable web archive? Thanks View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4198320#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...