Hi, Thanks for the quick answers. I've a good memory profiler where I could make a diff between 2 snapshots. I'm trying to make available my files that included the diff file. I've made it available in http://www.filesend.net/download.php?f=1a21223c2157ad669a243214afbb7390. Check windows_jboss405_diff1000.html file with difference between a clean JBoss and after 1000 deployments and undeployments, Regarding the JIRA issue, this issue is related to a bug in Apache commons-beanutils but my application is a very simple hello world with no link to commons-beanutils. I'll appreciate if you have any more ideas... Best regards, João Portela View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4022650#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...