RFR: 8359366: RunThese30M.java EXCEPTION_ACCESS_VIOLATION in JvmtiBreakpoints::clearall_in_class_at_safepoint

[Leonid Mesnik]

On Mon, 30 Jun 2025 20:47:35 GMT, Serguei Spitsyn <sspitsyn at openjdk.org> wrote:

> The issue itself is kind of artificial. The debugger should not set breakpoints concurrently with class redefinitions. But suppose this can really happen. Then I have a little preference to fix this by setting a breakpoint after redefinition when it is possible.

That might happens if the another javaagent request retransformation independently from debugger agent. It indeed quite rare but might happens. 
I planned to change the fix to use methodHandle instead of  jmehtodid. However it means that it is needed to reconstruct breakpoint with new method. I think it is too complicated and can't be well tested. 
Let me publish the second approach to decide what would be better to do with breakpoint.

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PR Comment: https://git.openjdk.org/jdk/pull/26031#issuecomment-3020763227