RFR(XS) 8242168: ClhsdbFindPC.java failed due to "RuntimeException: 'In code in NMethod for LingeredAppWithTrivialMain.main' missing from stdout/stderr"

[Igor Ignatev]

LGTM

— Igor

> On Apr 5, 2020, at 11:49 PM, Chris Plummer <Chris.Plummer at oracle.com> wrote:
> 
> [Sorry about the resend. Subject wasn't quite right the first time.]
> 
> Hello,
> 
> Please help review the following:
> 
> https://bugs.openjdk.java.net/browse/JDK-8242168
> http://cr.openjdk.java.net/~cjplummer/8242168/webrev.00/
> 
> ClhsdbFindPC needs to be disabled when using -XX:+DeoptimizeALot because it means the expected compiled frame may not be compiled. I also fixed ClhsdbJstackXcompStress since it also relies on frames being compiled, although I never got it to fail since it managed to always find at least one compiled frame.
> 
> I confirmed that with this fix these two tests are not run when -XX:+DeoptimizeALot is used. If not used, behavior is unchanged. ClhsdbFindPC.java#id0 runs whether or not using -Xcomp and #id1 still only runs when not using -Xcomp. ClhsdbJstackXcompStress gets run whether or not -Xcomp is used.
> 
> thanks,
> 
> Chris