[8u] PRF:8202142 :jfr/event/io/TestInstrumentation is unstable

[hedongbo]

Hi,

    Please review the backport of JDK-8202142 to 8u.
    Bug: https://bugs.openjdk.java.net/browse/JDK-8202142
    11u commit: https://github.com/openjdk/jdk11u-dev/commit/86c2995eae4b7ef57515445b9dd7505b6dc0bfa2
8u webrev: https://cr.openjdk.java.net/~dongbohe/8202142/webrev.00/

Patch does not apply cleanly: change to
ProblemList.txt is excluded (was added in JDK-8202142), paths reshuffled.

Testing: checked that TestInstrumentation.java fails without the patch
and passes with the patch.

Thanks,
hedongbo