RFR: 8298043: jdk/jfr/api/consumer/recordingstream/TestStop.java failed with "Expected outer stream to have 3 events"

[Erik Gahlin]

Could I have a review of a test and product fix.

Testing: 100 * test/jdk/jdk/jfr

Thanks
Erik

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Commit messages:
 - With updated ProblemList.txt

Changes: https://git.openjdk.org/jdk/pull/11517/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=11517&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8298043
  Stats: 21 lines in 5 files changed: 12 ins; 6 del; 3 mod
  Patch: https://git.openjdk.org/jdk/pull/11517.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11517/head:pull/11517

PR: https://git.openjdk.org/jdk/pull/11517