RFR: 8308762: Metaspace leak with Instrumentation.retransform

Wed Jul 12 14:17:17 UTC 2023

On Tue, 11 Jul 2023 01:03:29 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> ConstantPool merging is still really complicated and JVM_CONSTANT_Class/UnresolvedClass (and UnresolvedClassInError) may have changed to not track with what RedefineClasses does. If I'm reading this correctly, we are always calling find_matching_entry() and compare_entries_to() between the merged_cp and scratch_cp. Since we unresolve classes in merge_cp, and scratch_cp hasn't resolved anything yet, how are we getting this mismatch? Can you post a stack trace for us?

I have try to explain in the comment to David above. Tell me if there is something that is still not clear.

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PR Comment: https://git.openjdk.org/jdk/pull/14780#issuecomment-1632608966