> 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 50 commits: - Remove dup end body tag - Change FinalFieldMutationEvent so that caller is top frame in stack trace - Merge branch 'master' into JDK-8353835 - Review feedback: Add tests for setting internal properties, improve links in Mutation methods page - Merge branch 'master' into JDK-8353835 - 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 - ... and 40 more: https://git.openjdk.org/jdk/compare/2902436f...b22947c7 ------------- Changes: https://git.openjdk.org/jdk/pull/25115/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25115&range=10 Stats: 4882 lines in 71 files changed: 4697 ins; 54 del; 131 mod Patch: https://git.openjdk.org/jdk/pull/25115.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/25115/head:pull/25115 PR: https://git.openjdk.org/jdk/pull/25115
