Don't blame the use case for the fact that VFS can't unjar vfsmemory. It's a plain bug in VFS. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4247702#4247702 Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4247702