On Wed, 2 Jun 2021 17:12:21 GMT, Stuart Marks <sma...@openjdk.org> wrote:
> A quick search reveals that Guava has a public subclass of > SimpleImmutableEntry: > https://guava.dev/releases/30.1.1-jre/api/docs/com/google/common/cache/RemovalNotification.html >There are possibly others. It doesn't seem worth the incompatibility to me, as >it would break stuff in order to have only a "cleaner" meaning for >"immutable." Also, there are other classes in the JDK that claim they are >immutable but which can be subclassed, e.g., BigInteger. I don't see a good >way of fixing this. Thanks, i've done some digging too, I foolishly hoped that nobody would subclass a class with `Immutable` in its name, oh boy i was wrong :) So documenting the existing behavior seems the only possible way. ------------- PR: https://git.openjdk.java.net/jdk/pull/4295
