[jdk17u-dev] RFR: 8276696: ParallelObjectIterator freed at the wrong time in VM_HeapDumper

[Aleksey Shipilev]

On Thu, 15 Jun 2023 08:52:39 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Unclean backport to improve the heap dumping code for cleaner [JDK-8307348](https://bugs.openjdk.org/browse/JDK-8307348) backport. This backport is not clean, because it misses the parts of HeapDumper introduced by [JDK-8252842](https://bugs.openjdk.org/browse/JDK-8252842), which I don't want to backport at all in 17u, given the large bugtail for it.
> 
> Additional testing:
>  - [x] Linux x86_64 fastdebug `jdk/jfr serviceability/sa`
>  - [x] Linux x86_64 fastdebug `tier1 tier2 tier3`
>  - [x] Linux AArch64 fastdebug `tier1 tier2 tier3`

Reviews are here, testing is clean, push approval is here.

-------------

PR Comment: https://git.openjdk.org/jdk17u-dev/pull/1440#issuecomment-1621335236