No need to validate values for JsonNullable.undefined()

[VictorKrapivin]

At the moment value initialized as undefined() is treated as null within validation.

Following code demonstrates issue:

    public class TestObject {
        @NotNull @Size(max = 3)
        private JsonNullable<String> restrictedString = JsonNullable.undefined();

        public void setRestrictedString(String value) {
            restrictedString = JsonNullable.of(value);
        }
    }

TestObject testObject = new TestObject();
Set<ConstraintViolation<TestObject>> violations = validator.validate(testObject);
assertEquals(0, violations.size());

Here violations should be empty, because JSR380 constraints address value within JsonNullable container, not container itself. So testObject is valid. But actual behavior gives violations.

[cbornet]

Thanks for reporting. Would you do the fix ?

[VictorKrapivin]

@cbornet

Would you do the fix ?

Hi, sure. But I'm not able to create branch in this repository.
Actually my suggestion is to fix it like that:

@UnwrapByDefault
public class JsonNullableValueExtractor implements ValueExtractor<JsonNullable<@ExtractedValue ?>> {
    @Override
    public void extractValues(JsonNullable<?> originalValue, ValueReceiver receiver) {
        if (originalValue.isPresent()) {
            receiver.value(null, originalValue.get());
        }
    }
}

[cbornet]

@VictorKrapivin to submit a PR, you need to fork the repo, create a branch in the fork, then you can PR with the help of GitHub. See details here.

[VictorKrapivin]

@cbornet
Ok, thanks for explanation! PR #13 ready for review

[cbornet]

Closed by #13

[VictorKrapivin]

@cbornet Any plans for release?

[VictorKrapivin]

@cbornet Hi! Is it possible to release this fix in 0.2.1?

[jmini]

@VictorKrapivin, @cbornet:

If I remember well, I have published the last release to maven central.

I am waiting for feedback, just to be sure.
The idea is to create a 0.2.1 release and bump master to 0.2.2-SNAPSHOT?

[jmini]

Version 0.2.1 was released!

[VictorKrapivin]

@jmini Thanks!!