converter.coerceValue(validator, Iterator.class);
converterControl.setReturnValue(Collections.singleton(validator).iterator());
FormComponentContributorContext context = new FormComponentContributorContextImpl(field);
validator.renderContribution(writer, cycle, context, field);
validatorControl.setMatcher(new AggregateArgumentsMatcher(new ArgumentMatcher[]
{ new EqualsMatcher(), new EqualsMatcher(), new TypeMatcher(), new EqualsMatcher() }));
replayControls();