public void testMultipleGroupPermissionsOnNode() throws NotExecutableException, RepositoryException {
        Group testGroup = getTestGroup();
        /* create a second group the test user is member of */
        Principal principal = new TestPrincipal("testGroup" + UUID.randomUUID());
        UserManager umgr = getUserManager(superuser);
        Group group2 = umgr.createGroup(principal);
        try {
            group2.addMember(testUser);
            if (!umgr.isAutoSave() && superuser.hasPendingChanges()) {