Predicate<?> pred,
        Function<?, ?> func,
        Object obj);
  }

  private static class ParameterTypesDifferentForwarder implements ParameterTypesDifferent {
    private final ParameterTypesDifferent delegate;

    public ParameterTypesDifferentForwarder(ParameterTypesDifferent delegate) {
      this.delegate = delegate;
    }

    @Override
    public void foo(
        String s,