RFR: 8365630: jdk/jfr/tool/TestPrintContextual.java fails with wrong spanId

[Erik Gahlin]

Could I get a review of a test fix that emits events with unique timestamps, so the contextual information is printed in chronological order?

Testing: 500 *  jdk/jfr/tool/TestPrintContextual.java

Thanks
Erik

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Commit messages:
 - Initial

Changes: https://git.openjdk.org/jdk/pull/27626/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27626&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8365630
  Stats: 13 lines in 1 file changed: 13 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/27626.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27626/head:pull/27626

PR: https://git.openjdk.org/jdk/pull/27626