In VFS3, VFS doesn't know (or care) if a file is an archive, unless a deployer has mounted it. VFS3's "isLeaf()" is deprecated and just returns "! isDirectory()". However, isDirectory() only returns true if the entry is known to be a directory; a false value might mean that yes it's a directory but it's not accessible for some reason (permissions etc.). So I think I will add an isFile() method and make isLeaf() call that instead... or maybe simply remove isLeaf() altogether. A getType() would be the best API of all, but Java gives us no way to guarantee we have the right answer in a consistent and race-free manner. Maybe with JDK7... View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4261071#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...