RFR: 8305895: Implement JEP 450: Compact Object Headers (Experimental) [v6]

[Chris Plummer]

On Mon, 26 Aug 2024 21:30:51 GMT, Chris Plummer <cjplummer at openjdk.org> wrote:

>> Roman Kennke has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Fix bit counts in GCForwarding
>
> src/jdk.hotspot.agent/share/classes/sun/jvm/hotspot/oops/Oop.java line 85:
> 
>> 83: 
>> 84:   private static Klass getKlass(Mark mark) {
>> 85:     assert(VM.getVM().isCompactObjectHeadersEnabled());
> 
> `mark.getKlass()` already does this assert. I don't see any value in this `getKlass()` method. The caller should just call `getMark().getKlass()` rather than `getKlass(getMark())`.

I'm not sure why this got marked as resolved.

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

PR Review Comment: https://git.openjdk.org/jdk/pull/20677#discussion_r1750600652