RFR: 8308237: add JDWP and JDI virtual thread support for ThreadReference.PopFrames [v7]

Serguei Spitsyn sspitsyn at openjdk.org
Tue May 23 06:27:59 UTC 2023


On Mon, 22 May 2023 21:56:43 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:
> 
>   fix jcheck error.

Nice new PopFrameTest!

test/jdk/com/sun/jdi/PopFramesTest.java line 193:

> 191:     }
> 192: 
> 193:     // Returns true if debuggee should introduce a native frame within the set of frames to pop

Nit: Better do end with a dot: lines 188 and 193.

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

Marked as reviewed by sspitsyn (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/14022#pullrequestreview-1438679353
PR Review Comment: https://git.openjdk.org/jdk/pull/14022#discussion_r1201592560


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