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  1. JDK
  2. JDK-8256299 Implement JEP 396: Strongly Encapsulate JDK Internals by Default
  3. JDK-8256358

Release Note: JEP 396: Strongly Encapsulate JDK Internals by Default

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      Description

      Strongly encapsulate all internal elements of the JDK by default, except
      for [critical internal APIs][crit] such as `sun.misc.Unsafe`. Allow end
      users to choose the relaxed strong encapsulation that has been the
      default since JDK 9.

      With this change, the default value of the launcher option
      [`--illegal-access`][relax] is now `deny` rather than `permit`. As a
      consequence, existing code that uses most internal classes, methods, or
      fields of the JDK will fail to run. Such code can be made to run on
      JDK 16 by specifying `--illegal-access=permit`. That option will,
      however, be removed in a future release.

      For further details, please see [JEP 396](https://openjdk.java.net/jeps/396).

      [crit]: https://openjdk.java.net/jeps/260#Description
      [relax]: https://openjdk.java.net/jeps/261#Relaxed-strong-encapsulation

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            Assignee:
            mr Mark Reinhold
            Reporter:
            mr Mark Reinhold
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