I think it is a regression because p0 means a method with zero arguments whereas p1 means a perm for a specific method name but various overloaded arguments(all overloaded methods).

So, I think p1.implies(p0) == true where as p0.implies(p1) == false.

I need to rollback the change I made in JBAS-5014. I already did it for Branch_4_2. I need to do the same for javaee project.

UPDATE: Rolledback in javaee project also.

The reason the JACC tests were failing were due to:

for(MethodPermissionMetaData perm : perms)
 {
 MethodsMetaData methods = perm.getMethods();
 if(methods != null)
 for(org.jboss.metadata.ejb.spec.MethodMetaData mmd : methods)
 {
 String[] params = {};
 if(mmd.getMethodParams() != null)
 params = mmd.getMethodParams().toArray(params);
 else
 params = null; <= I ADDED THIS NULL