[rules-users] guvnor integration gives 401 error

Hi, I have my application running in one instance of jboss server and guvnor running in another. When my application code tries to fireAllRules created in guvnor, the following error comes: 16:00:12,131 INFO [STDOUT] java.lang.RuntimeException: KnowledgeAgent exception while trying to deserialize KnowledgeDefinitionsPackage Caused by: java.io.IOException: Server returned HTTP response code: 401 for URL: http://pcbng100:18080/drools-guvnor/org.drools.guvnor.Guvnor/package/com.... When I use same code within a java file with main method & run as java application in eclipse, the rules fire properly.Any suggestions would be appreciated.