On Wed, 29 Jul 2026 14:52:02 GMT, David Simms <[email protected]> wrote:
>> This pull request implements the first >> [preview](https://openjdk.org/jeps/12) of [JEP 401: Value >> Objects](https://openjdk.org/jeps/401): >> >> - [JDK-8317277](https://bugs.openjdk.org/browse/JDK-8317277): Java language >> implementation of value objects >> - https://github.com/openjdk/jdk/pull/31121 >> - [JDK-8317278](https://bugs.openjdk.org/browse/JDK-8317278): JVM >> implementation of value objects >> - https://github.com/openjdk/jdk/pull/31122 >> - [JDK-8317279](https://bugs.openjdk.org/browse/JDK-8317279): Standard >> library implementation of value objects >> - https://github.com/openjdk/jdk/pull/31123 >> >> This pull request also includes the implementation of [Strict Field >> Initialization in the JVM (Preview)](https://openjdk.org/jeps/8350458) (yet >> to have been assigned a JEP number). That work was implemented in the same >> code base because JEP 401 depends on strict field initialization. >> >> This is the "*master pull request*" for the initial preview of [JEP >> 401](https://openjdk.org/jeps/401). Comments and review for a change this >> large will not scale well in a single pull request. This pull request serves >> as the vehicle for sign-off and integration into >> [`jdk/master`](https://github.com/openjdk/jdk). **Review comments should be >> directed to the appropriate "*sub-review pull request*" listed above.** >> >>> [!NOTE] >>> The "*sub-review pull requests*" contain the same full set of code changes >>> as this "*master pull request*" to preserve the full implementation >>> context; the language compiler, JVM, and standard library changes are >>> intertwined. The separate pull requests exist only to subdivide the review >>> and related discussion by area. >> >> Any resulting code changes should be made in >> [`valhalla/lworld`](https://github.com/openjdk/valhalla/). >> >> `valhalla/lworld` is currently updated from `jdk/master` whenever a weekly >> [`jdk` tag](https://github.com/openjdk/jdk/tags) is created. At that time, >> code changes from `valhalla/lworld` will be propagated to this pull request >> and to all sub-review pull requests. >> >> Ultimately, review sign-off will be recorded on this "*master pull >> request*", and the "*sub-review pull requests*" will be closed without >> integration. >> >> This pull request has a large surface area and frequently conflicts with >> `jdk/master`. Refer to >> [`valhalla/lworld`](https://github.com/openjdk/valhalla/) for the latest >> state of the project code, keeping in mind that it may lag several days >> behind `jdk/master`. Both repositories may be needed as referenc... > > David Simms has updated the pull request with a new target base due to a > merge or a rebase. The pull request now contains 2927 commits: > > - Merge remote-tracking branch 'valhalla/lworld' into 8317277 > - 8389322: [lworld] Disable TestNullableInlineTypes::test103() until > JDK-8389088 is fixed > > Reviewed-by: thartmann, dcubed > - 8389085: [lworld] C2: assert(field_value != nullptr) failed in > PhaseMacroExpand::inline_type_from_mem > > Reviewed-by: mhaessig, chagedorn > - 8388966: [lworld] compiler/igvn/TestMaskedStoreIdealization.java fails > with Valhalla > > Reviewed-by: mchevalier, thartmann > - 8388928: [lworld] ProblemList > compiler/vectorapi/TestVectorReassociations.java > > Reviewed-by: thartmann > - Merge > > Merge jdk-28+8 > - Merge > > Merge jdk-28+7 > - 8388318: [lworld] jdk.internal.value.Deserializer annotation should not be > honored on application classes > > Reviewed-by: dlsmith, alanb, jpai > - 8388462: [lworld] Provide more context about wrapper class caches > > Reviewed-by: darcy, thartmann > - 8388524: [lworld] JVMTI cleanup > > Reviewed-by: dholmes > - ... and 2917 more: https://git.openjdk.org/jdk/compare/5428159f...efddcf20 @MrSimms - I suspect there is a problem with the bot updating this PR. ------------- PR Comment: https://git.openjdk.org/jdk/pull/31120#issuecomment-5120396609
