Sorry RTFM :-)
I am working on with the same issue, and I think the question you have been confronted with is slightly misleading. It is not the Application Server that should be WS-I Basic Profile compliant, it?s your Web Services.
The Application Server is capable of delivering WS-I Basic Profile compliant Web Services, when using the J2EE style (Not the Axis style found in earlier versions of JBoss) Web Services.
Download the WS-I Testing Tool to find out if you Web Services are WS-I Compliant. http://ws-i.org/deliverables/workinggroup.aspx?wg=testingtools