> Value Object has been introduced since JDK 28 (as a preview feature), however
> it cannot be handled in SA.
>
>
> public value class Test{
>
> public static value record Rec(byte recA, byte recB){};
>
> byte a;
>
> byte b;
>
> Rec rec;
>
> byte c;
> }
>
>
> `rec` as `Test$Rec` can be inlined into the instance of `Test`, but it would
> be shown as "Bad OOP" in "inspect" on SA. SA should show valid values in
> `rec`.
>
> Note that his change would expand flattened object in below in `inspect`
> CLHSDB command:
>
>
> hsdb> inspect 0xc22419e8
> instance of Oop for LingeredAppWithValueObject$ValueObj @ 0x00000000c22419e8
> (size = 16)
> _mark: 73201086130815105
> a: 1
> b: 2
> rec:
> recA: 10
> recB: 20
> c: 3
>
>
> ---------
> - [x] I confirm that I make this contribution in accordance with the [OpenJDK
> Interim AI Policy](https://openjdk.org/legal/ai).
Yasumasa Suenaga 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 13 additional commits
since the last revision:
- Check null marker for value object
- Merge branch 'master' into JDK-8390106
- Update comments
- Add isInline()
- Update
src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/oops/FlattenedInline.java
Co-authored-by: Chris Plummer <[email protected]>
- Introduce FlattenedInline.java in SA
- Add comments for Inline
- Use if-else to create new oop
- Refactoring
- Remove isInline()
- ... and 3 more: https://git.openjdk.org/jdk/compare/8dd7f929...ae766f2a
-------------
Changes:
- all: https://git.openjdk.org/jdk/pull/32310/files
- new: https://git.openjdk.org/jdk/pull/32310/files/48e3a909..ae766f2a
Webrevs:
- full: https://webrevs.openjdk.org/?repo=jdk&pr=32310&range=09
- incr: https://webrevs.openjdk.org/?repo=jdk&pr=32310&range=08-09
Stats: 39293 lines in 1138 files changed: 24150 ins; 9011 del; 6132 mod
Patch: https://git.openjdk.org/jdk/pull/32310.diff
Fetch: git fetch https://git.openjdk.org/jdk.git pull/32310/head:pull/32310
PR: https://git.openjdk.org/jdk/pull/32310
