On Mon, 10 Nov 2025 10:06:31 GMT, Alan Bateman <[email protected]> wrote:
>> Implementation changes for [JEP 500: Prepare to Make Final Mean >> Final](https://openjdk.org/jeps/500). >> >> Field.set (and Lookup.unreflectSetter) are changed to allow/warn/debug/deny >> when mutating a final instance field. JFR event recorded if final field >> mutated. Spec updates to Field.set, Field.setAccessible and Module.addOpens >> to align with the proposal in the JEP. >> >> HotSpot is updated to add support for the new command line options. To aid >> diagnosability, -Xcheck:jni reports a warning and -Xlog:jni=debug logs a >> message to help identity JNI code that mutates finals. For now, JNI code is >> allowed to set the "write-protected" fields System.in/out/err without a >> warning, we can re-visit once we change the System.setIn/setOut/setErr >> methods to not use JNI (I prefer to keep this separate to this PR because >> there is a small startup regression to address when changing System.setXXX). >> >> There are many new tests. A small number of existing tests are changed to >> run /othervm as reflectively opening a package isn't sufficient. Changing >> the tests to /othervm means that jtreg will launch the agent with the >> command line options to open the package. >> >> Testing: tier1-6 > > Alan Bateman has updated the pull request with a new target base due to a > merge or a rebase. The pull request now contains 45 commits: > > - Merge branch 'master' into JDK-8353835 > - Fix typo in test comment > - Merge branch 'master' into JDK-8353835 > - Merge branch 'master' into JDK-8353835 > - Suppress warnings from some tests > - Change -Xcheck:jni to be warning rather than fatal error > - Merge branch 'master' into JDK-8353835 > - Simplify filter > - Merge branch 'master' into JDK-8353835 > - Update Xcheck:jni description > - ... and 35 more: https://git.openjdk.org/jdk/compare/066810c8...6671ae02 Marked as reviewed by vyazici (Committer). ------------- PR Review: https://git.openjdk.org/jdk/pull/25115#pullrequestreview-3442211078
