Integrated: 8321225: [JVMCI] HotSpotResolvedObjectTypeImpl.isLeafClass shouldn't create strong references

[Tom Rodriguez]

On Mon, 4 Dec 2023 05:36:38 GMT, Tom Rodriguez <never at openjdk.org> wrote:

> Checking for leaf Klasses requires seeing if the subklass field is null.  As part of the fix for JVMCI support for ZGC, JDK-8299229, it was changed to call into the runtime which had the side effect of creating a strong reference to an the class.  Since it's only checking for non-null it's ok to just perform thread directly as was done prior to JDK-8299229.  This avoids causing class unloading problems.

This pull request has now been integrated.

Changeset: fddc02e0
Author:    Tom Rodriguez <never at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/fddc02e046e926af75661ce167d4531393438c7a
Stats:     6 lines in 1 file changed: 5 ins; 0 del; 1 mod

8321225: [JVMCI] HotSpotResolvedObjectTypeImpl.isLeafClass shouldn't create strong references

Reviewed-by: thartmann, eosterlund, kvn

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PR: https://git.openjdk.org/jdk/pull/16943