[11u]: 8262121: [11u] Redo 8244287: JFR: Methods samples have line number 0

[Lindenmaier, Goetz]

Hi,

We had seen sporadic test failures in the test added with this 
change.
Jaroslav proposed a fix. Thanks!  Since applying that fix I did not see
the problem any more.

This new webrev contains the fix by Jaroslav:
http://cr.openjdk.java.net/~goetz/wr21/8262121-Redo-8244287-JFR_line_no_0-jdk11/02/

Best regards,
  Goetz.



> -----Original Message-----
> From: Lindenmaier, Goetz
> Sent: Monday, February 22, 2021 2:18 PM
> To: jdk-updates-dev <jdk-updates-dev at openjdk.java.net>
> Subject: [11u]: 8262121: [11u] Redo 8244287: JFR: Methods samples have
> line number 0
> 
> Hi,
> 
> We tried to backport "8244287: JFR: Methods samples have line number 0"
> to 11.0.9 [1].  The first downport had to be backed out, though [2].
> 
> I now propose this change for the issue. Please review.
> http://cr.openjdk.java.net/~goetz/wr21/8262121-Redo-8244287-
> JFR_line_no_0-jdk11/01/
> I have verified that we do not see the crashes we saw with the
> original change.
> 
> New Issue:
> https://bugs.openjdk.java.net/browse/JDK-8262121
> 
> Original Change:
> https://bugs.openjdk.java.net/browse/JDK-8244287
> Previous downport:
>  https://bugs.openjdk.java.net/browse/JDK-8253576
> Backout:
> https://bugs.openjdk.java.net/browse/JDK-8253813
> 
> I don't understand why the previous backport is
> flagged as 11.010. It was pushed on 2020-09-23,
> which was in the 11.0.9 time frame. But we had
> issues with the automatic tagging in the past, probably
> this is the reason.
> 
> I will only push this to 11.0.12.
> I would also adapt the backport information so that
> JBS shows that this is only fixed in 11.0.12.
> 
> Best regards,
>   Goetz
> 
> [1] https://mail.openjdk.java.net/pipermail/jdk-updates-dev/2020-
> June/003312.html
> [2] http://mail.openjdk.java.net/pipermail/jdk-updates-dev/2020-
> September/003886.html