Although it makes some sense to disallow a relative path containing ".." from a VirtualFile.findChild, its too restricitve for the VFSUtils.addManifestLocations | java.lang.IllegalArgumentException: Reverse paths are not allowed (containing a . or ..), use getParent(): ../cp-mf.jar | at org.jboss.virtual.plugins.vfs.helpers.PathTokenizer.getTokens(PathTokenizer.java:67) | at org.jboss.virtual.plugins.context.AbstractVirtualFileHandler.structuredFindChild(AbstractVirtualFileHandler.java:230) | at org.jboss.virtual.plugins.context.file.FileHandler.findChild(FileHandler.java:166) | at org.jboss.virtual.VirtualFile.findChild(VirtualFile.java:374) | at org.jboss.virtual.VFSUtils.addManifestLocations(VFSUtils.java:130) | Its too common for Class-Path entries to refer to arbitrary relative locations using either "." or ".." in the path. VFSUtils.addManifestLocations is going to have to do more work to canonicalization the path. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3978059#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...