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

[Leonid Mesnik]

Looks good (not a Reviewer).

Leonid

On 4/5/20 11:49 PM, Chris Plummer 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