This TransformerCommon problem is specific to jrockit. I don't see this when running under the sun jdk. Is this a runtime weaving check issue? We need a better error that indicates the problem if it is. The jrocket version I'm using is | [starksm@succubus lib]$ java -version | java version "1.5.0_06" | Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05) | BEA JRockit(R) (build R26.4.0-63-63688-1.5.0_06-20060626-2259-linux-x86_64, ) | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3981424#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...