SonarCloud reports an oddity in `java.util.stream.FindOps.FindSink.OfRef.get()`

```
            @Override
            public Optional<T> get() {
                return hasValue ? Optional.of(value) : null;
            }
```

The method return type is Optional, but it returns `null`.

Looks like a minor overlook, as similar code in ReduceOps returns Optional.empty(). There might be other implications to this.