[jdk17u] RFR: 8277919: OldObjectSample event causing bloat in the class constant pool in JFR recording

[Jaroslav Bachorik]

8277919: OldObjectSample event causing bloat in the class constant pool in JFR recording

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Commit messages:
 - Backport 475ec8e6c5abc3431344d69bd46395e8c4b46e4c

Changes: https://git.openjdk.java.net/jdk17u/pull/329/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u&pr=329&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8277919
  Stats: 16 lines in 3 files changed: 7 ins; 4 del; 5 mod
  Patch: https://git.openjdk.java.net/jdk17u/pull/329.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u pull/329/head:pull/329

PR: https://git.openjdk.java.net/jdk17u/pull/329