pc.addToRole("callerX", someEJB);
pc.commit();
sysPolicy.refresh();
SimplePrincipal[] callers = {new SimplePrincipal("callerX")};
ProtectionDomain pd = new ProtectionDomain(null, null, null, callers);
assertTrue("methodX allowed", sysPolicy.implies(pd, methodX) == true);
callers = new SimplePrincipal[]{new SimplePrincipal("callerY")};
pd = new ProtectionDomain(null, null, null, callers);
assertTrue("methodX denied", sysPolicy.implies(pd, methodX) == false);