@Test
public void throwsAmbigousException () {

  MyService2 service = new MyService2();
  val builder = MethodMatcherMessageHandler.builder()
      .wrap(service);
  assertThatExceptionOfType(IllegalArgumentException.class)
      .isThrownBy(() -> builder.tuple(it -> it.popa2(any(), null, "popa")))
      .withMessage("Ambiguous method call");
}