> This pull request implements the first [preview](https://openjdk.org/jeps/12) > of [JEP 401: Value Objects (Preview)](https://openjdk.org/jeps/401). This > pull request also includes the implementation of [JEP 539: Strict Field > Initialization in the JVM (Preview)](https://openjdk.org/jeps/539). That work > was implemented in the same code base because JEP 401 depends on strict field > initialization. > > Sub-reviews, for spreading review debates are here: > > - [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 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 references during > review....
David Simms has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 2934 commits: - Merge remote-tracking branch 'valhalla/lworld' into 8317277 - Merge - 8386451: [lworld] things to delete from lworld just before integrating JEP-401 Reviewed-by: coleenp, dsimms, liach, lfoltan - Merge Reviewed-by: liach, dsimms - Merge Reviewed-by: dsimms - 8389365: [lworld] Fix ProblemList marker comments and misc cleanups Reviewed-by: fparain, liach - Merge Reviewed-by: dsimms - 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 - ... and 2924 more: https://git.openjdk.org/jdk/compare/0d4fb556...58712b78 ------------- Changes: https://git.openjdk.org/jdk/pull/31120/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=31120&range=10 Stats: 211816 lines in 1890 files changed: 198603 ins; 3754 del; 9459 mod Patch: https://git.openjdk.org/jdk/pull/31120.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/31120/head:pull/31120 PR: https://git.openjdk.org/jdk/pull/31120
