See JDK-8373719 for issues that should be addressed directly in JLS. The value-objects-jls spec change document may want to independently address these bugs.

The following JEP 401-specific changes should also apply to 15.8.3 and 15.8.4 in the spec change document:
- 'this'-qualified field references are valid in a value class's early construction context even if the field has an initializer
- 'this'-qualified field references are not allowed before a 'this()' constructor invocation