[jdk17u-dev] RFR: 8313816: Accessing jmethodID might lead to spurious crashes

[Paul Hohensee]

On Wed, 29 Nov 2023 18:35:30 GMT, Jaroslav Bachorik <jbachorik at openjdk.org> wrote:

> Reviewed-by: coleenp
> 
> A minor update required for the backport - the original changeset is using `nullptr` while the JDK 17 version is using `NULL`
> 
> Attaching the conflicting file for posterity.
> 
> [instanceKlass.cpp](https://github.com/openjdk/jdk17u-dev/files/13504341/InstanceKlass_conflict.txt)
> 
> Additionally,  I had to bring in a few test support classes as well - https://github.com/openjdk/jdk17u-dev/pull/2001/commits/d59ac82d5b4d3cace38e38cb7747642aaee98ba4

Looks like a clean backport from the 17u PR, except for replacing nullptr with NULL as you note, and the unused declaration of metaspaceSharedRegionAlignment in WhiteBox.java. The latter doesn't seem have a definition in 11u: if so, please remove it.

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

PR Review: https://git.openjdk.org/jdk17u-dev/pull/2001#pullrequestreview-1760618415