RFR: 8269418: jdk/jfr/event/oldobject/TestObjectSize.java failed with "RuntimeException: No events: expected false, was true"

[Markus Grönlund]

Greetings,

please help review these adjustments to make the test more robust, i.e. neither trap on an invalid assertion nor timeout because of too many retries.

Testing: jdk_jfr (300 times)

Thanks
Markus

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Commit messages:
 - Make test a bit more robust

Changes: https://git.openjdk.java.net/jdk/pull/5350/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5350&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8269418
  Stats: 12 lines in 2 files changed: 2 ins; 6 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5350.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5350/head:pull/5350

PR: https://git.openjdk.java.net/jdk/pull/5350