We have been running obfuscated jars (created by DashOPro) without any problem using jetty 4.x version. Currently we upgrade jetty to jetty 5.1.11, then we encounter some problem (see below error message) when using web tool. Could anyone have any clue. Any comments will be highly appreciated. Thanks, Sue Error msg excerpt: --------------------------- 2007-12-13 18:34:34,496 [SocketListener0-3] DEBUG org.mortbay.http.ContextLoader - try loadClass ...