RFR: 8338526: Don't store abstract and interface Klasses in class metaspace [v3]

[Coleen Phillimore]

On Wed, 28 Aug 2024 05:57:14 GMT, Ioi Lam <iklam at openjdk.org> wrote:

>> Coleen Phillimore has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains four commits:
>> 
>>  - With JDK-8338929 we don't need is_in_class_space().
>>  - Merge branch 'master' into anon
>>  - Incorporated a set of Thomas Stuefe's comments. Take out AbstractClass MetaspaceObj::Type.
>>  - 8338526: Don't store abstract and interface Klasses in class metaspace
>
> src/hotspot/share/oops/metadata.hpp line 2:
> 
>> 1: /*
>> 2:  * Copyright (c) 2011, 2024, Oracle and/or its affiliates. All rights reserved.
> 
> No more change in this file?

I removed the copyright.
I tried to add an assert to CompresssedKlassPointers::encode_not_null but CDS calls this with ill-formed Klass* pointers so the tests crash.

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PR Review Comment: https://git.openjdk.org/jdk/pull/19157#discussion_r1734914543