Hi together, my webapplication running on JBoss uses several JARs located in its own lib directory. Now I tried to replace two of them with a newer version via ANT's "copy"-task and a subsequent "touch" on the according "web.xml". However, I get an "java.util.zip.ZipException: invalid block type"-Exception afterwards. If I restart JBoss everything is works fine. So my question is: Is it possible to replace JARs of a webapplication without having to restart JBoss at all? Thanks for your help, Stephan View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3978467#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...