Integrating OAUTH library Signpost modules in JBoss EAP 6

Issue

• We are seeing some challenges integrating open source Oauth Signing API Signpost http://code.google.com/p/oauth-signpost/ in EAP6. Initially there were issues around Class Loading and I created some static modules for oauth.signpost and javax.crypto and enhanced sun.jdk module to include some more sun libraries. But Now I see an exception below. This is a perfectly valid sunjce_provide implementation and works fine out side the realm of Jboss EAP6. But In EAP6 I see this ClassCastException.

ERROR [stderr] (http-127.0.0.1/127.0.0.1:8080-1) java.lang.ClassCastException: com.sun.crypto.provider.HmacSHA1 cannot be cast to javax.crypto.MacSpi