@Test
public void serverGroup2() throws Exception {

    ResourceAddress input = new ResourceAddress()
            .add("server-group", "main-server-group")
            .add("system-property", "*");
    ResourceAddress expected = new ResourceAddress()
            .add("server-group", "*")
            .add("system-property", "*");
    ResourceAddress result = processor.apply(input);
    assertEquals(expected, result);
}