RFR: 8263377: Store method handle linkers in the 'non-nmethods' heap [v2]

Tue Jun 7 23:48:39 UTC 2022

On Sat, 4 Jun 2022 01:11:10 GMT, Dean Long <dlong at openjdk.org> wrote:

>> src/hotspot/share/code/codeBlob.cpp line 342:
>> 
>>> 340: MethodHandleIntrinsicBlob* MethodHandleIntrinsicBlob::create(const methodHandle& method,
>>> 341:   CodeBuffer *code_buffer) {
>>> 342:   code_buffer->finalize_oop_references(method);
>> 
>> Can you please explain why this is needed? (I'm a bit surprised since the constructor asserts that `total_oop_size` is 0)
>> 
>> Thanks.
>
> I don't think finalize_oop_references() makes sense except for nmethods.  If the MH intrinsic could contain contain oops, then GC would need to be able to find and relocate them.

It is not needed. Removed.

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PR: https://git.openjdk.java.net/jdk/pull/8760