Operator o = new MappingRule.Operator(aa, new String[] {
Operator o = new MappingRule.Operator(aa, null, new String[] {
    public void testOperatorNoExtension() {        AutoAttendant aa = new AutoAttendant();        aa.setName(TEST_NAME);        aa.setDescription(TEST_DESCRIPTION);        Operator o = new MappingRule.Operator(aa, new String[] {            "0", "operator"        });        assertEquals("0|operator", StringUtils.join(o.getPatterns(), "|"));        assertEquals(TEST_NAME, o.getName());        assertEquals(TEST_DESCRIPTION, o.getDescription());    }