[jdk21u-dev] RFR: 8356324: JVM crash (SIGSEGV at ClassListParser::resolve_indy_impl) during -Xshare:dump starting from 21.0.5

[Aleksey Shipilev]

On Mon, 25 Aug 2025 10:05:53 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

> Avoids the JVM crash in a corner case. The patch is very recent, but it is borderline trivial, and we have seen customer crashes in the wild (see original issue). Without the patch, the alternative on this code path is a JVM crash.
> 
> Unfortunately, this 21u version is not clean. 21u is missing [JDK-8309878](https://bugs.openjdk.org/browse/JDK-8309878), so I had to re-apply the fix to the older place.
> 
> Additional testing:
>  - [x] Linux AArch64 server fastdebug, original reproducer no longer fails
>  - [x] Linux AArch64 server fastdebug, `tier1`

Push approval granted. I have additionally verified this patch fixes the original reproducer.

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PR Comment: https://git.openjdk.org/jdk21u-dev/pull/2123#issuecomment-3227737547