On Mon, 25 Apr 2022 19:36:49 GMT, Stefan Karlsson <[email protected]> wrote:
>> src/hotspot/share/oops/instanceKlass.cpp line 441:
>>
>>> 439:
>>> 440: // Allocation
>>> 441: if (parser.is_java_lang_ref_Reference_subclass()) {
>>
>> I'm having a really hard time understanding this. java.lang.Reference now
>> doesn't have any REF_OTHER type set. I didn't realize that a
>> java.lang.Reference instance is a plain InstanceKlass, and not an
>> InstanceRefKlass. Is this right?
>
> Yes, I was also surprised by this. The java.lang.ref.Reference Klass is only
> an InstanceKlass, not an InstanceRefKlass.
Yeah, please add a short comment in the is_java_lang_ref_Reference_subclass
function that this is the case, now that we've learned this.
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PR: https://git.openjdk.java.net/jdk/pull/8332
