RFR: 8338526: Don't store abstract and interface Klasses in class metaspace [v4]

[Coleen Phillimore]

On Thu, 29 Aug 2024 05:24:18 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

>> Coleen Phillimore has updated the pull request incrementally with two additional commits since the last revision:
>> 
>>  - Merge branch 'anon' of github.com:coleenp/jdk into anon
>>  - Fix copyright
>
> src/hotspot/share/jfr/recorder/checkpoint/types/traceid/jfrTraceIdKlassQueue.cpp line 79:
> 
>> 77: 
>> 78: static bool can_compress_element(const Klass* klass) {
>> 79:   return Metaspace::is_in_class_space(klass) &&
> 
> Suggestion:
> 
>   return (Metaspace::is_in_class_space(klass) || Metaspace::is_in_shared_metaspace(klass)) &&

Is this right?  If UseCompressedClassPointers is off, then the shared metaspace isn't in compressed space?

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PR Review Comment: https://git.openjdk.org/jdk/pull/19157#discussion_r1736041738