RFR: Split out ContinuationEntry and ContinuationWrapper classes

[Coleen Phillimore]

On Thu, 14 Apr 2022 13:24:33 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> src/hotspot/share/runtime/continuationWrapper.inline.hpp line 51:
>> 
>>> 49: 
>>> 50:   short _e_size;
>>> 51:   short _e_num_interpreted_frames;
>> 
>> The two JFR fields can be moved out of ContinuationWrapper altogether and put into a FreezeThawBase class in continuationFreezeThaw.cpp, where they can be guarded by `#if CONT_JFR`.
>
> I don't see the point of having this mess for two variable initializations.

maybe all the JFR code can go in freezethaw as you suggest.

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PR: https://git.openjdk.java.net/loom/pull/145