RFR: 8308237: add JDWP and JDI virtual thread support for ThreadReference.PopFrames [v9]

[Chris Plummer]

On Tue, 23 May 2023 07:49:15 GMT, Chris Plummer <cjplummer at openjdk.org> wrote:

>> This is a follow-on to [JDK-8308000](https://bugs.openjdk.org/browse/JDK-8308000) which adds JVMTI PopFrames support for virtual thread. For JDWP and JDI this is mostly a spec update, although JDI needs minor changes to properly throw the correct exception. Note this PR needs JDK-8264699 in order to function properly, so there may be some GHA failures until JDK-8308000 is pushed.
>> 
>> There are a large number of tests that can now be removed from the problem list. Also, one test needs to be modified to no longer expect OpaqueFrameException for virtual threads. It was just revereted back to it's previous form before the OpaqueFrameException support was added for virtual threads.
>> 
>> As you can see from the problemlist update, there are quite a few tests for popFrames() support. However, there were no existing tests for throwing NativeMethodException, nor ones that would expose the new OpaqueFrameException when the virtual thread is suspended but not mounted. I've added a test that cover these.
>> 
>> For the new test I added, I needed the fix for:
>> 
>> [JDK-8308481](https://bugs.openjdk.org/browse/JDK-8308481): JDI TestScaffold does not support passing app arguments to the debuggee
>> 
>> So I've included it with this PR.
>
> Chris Plummer has updated the pull request incrementally with one additional commit since the last revision:
> 
>   set breakpoint in loopOrSleep() rather than popMethod() since it is a bit closer to the point where the thread blocks.

Thanks for the reviews Alan, Serguei, and Leonid!

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PR Comment: https://git.openjdk.org/jdk/pull/14022#issuecomment-1561589119