On Mon, 10 Aug 2026 20:42:23 GMT, Chen Liang <[email protected]> wrote:
>> We should allow unset fields when `uninitializedThis` is in the stack, in >> addition to only checking locals, as a result of >> https://bugs.openjdk.org/browse/JDK-8375481. >> >> Noticed that hotspot's verifier is not up-to-date with this spec; this patch >> therefore only fixes classfile API and javap and leaves classfile API's >> verifier and hotspot in place. >> >> --------- >> - [x] I confirm that I make this contribution in accordance with the >> [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). > > Chen Liang has updated the pull request with a new target base due to a merge > or a rebase. The incremental webrev excludes the unrelated changes brought in > by the merge/rebase. The pull request contains three additional commits since > the last revision: > > - Add 8389843 > - Merge branch 'master' of https://github.com/openjdk/jdk into > fix/cf-unset-restriction > - unset field allowed for uninitThis on stack This patch currently has these contents: 1. Fix `StackMapFrameInfo` and stack maps parsing/generation to correctly accept a `flagThisUninit` frame with `uninitializedThis` in the stack only. 2. Incorporate the ClassFile API port of verifier changes in #32242 3. Fix typo in `StackMapGenerator.Type.UNITIALIZED_THIS_TYPE` 4. Validate the u2 checks for the list arguments to `StackMapFrameInfo.of` with unset fields overload 5. Fix javap to print unset fields when it encounters a `flagThisUninit` frame with `uninitializedThis` in the stack only. 6. Clean ups to StrictStackMapsTest, use constant for EARLY_LARVAL frame type, clean up other IDE warnings. ------------- PR Comment: https://git.openjdk.org/jdk/pull/32224#issuecomment-5253733869
