public static String getGroupedName(final String serviceName, final String groupName) {
        if (StringUtils.isBlank(serviceName)) {
            throw new IllegalArgumentException("Param 'serviceName' is illegal, serviceName is blank");
        }
        if (StringUtils.isBlank(groupName)) {
            throw new IllegalArgumentException("Param 'groupName' is illegal, groupName is blank");
        }
        final String resultGroupedName = groupName + Constants.SERVICE_INFO_SPLITER + serviceName;
        return resultGroupedName.intern();
    }
@Test
    void testGetGroupedName() {
        assertEquals("group@@serviceName", NamingUtils.getGroupedName("serviceName", "group"));
    }