public static boolean isServiceNameCompatibilityMode(final String serviceName) {
        return !StringUtils.isBlank(serviceName) && serviceName.contains(Constants.SERVICE_INFO_SPLITER);
    }
@Test
    void testIsServiceNameCompatibilityMode() {
        String serviceName1 = "group@@serviceName";
        assertTrue(NamingUtils.isServiceNameCompatibilityMode(serviceName1));
        
        String serviceName2 = "serviceName";
        assertFalse(NamingUtils.isServiceNameCompatibilityMode(serviceName2));
        
        String serviceName3 = null;
        assertFalse(NamingUtils.isServiceNameCompatibilityMode(serviceName3));
    }