[jdk17] RFR: 8270491: SEGV at read_string_field(oopDesc*, char const*, JavaThread*)+0x54

[Markus Grönlund]

Greetings,

Please help review this changeset which adds missing logic to handle potential exceptions when retrieving the MBean argument descriptors for the JFR diagnostic commands.

Testing: jdk_jfr, perfstartup

Thanks
Markus

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Commit messages:
 - SEGV at read_string_field(oopDesc*, char const*, JavaThread*)+0x54

Changes: https://git.openjdk.java.net/jdk17/pull/267/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17&pr=267&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8270491
  Stats: 60 lines in 2 files changed: 36 ins; 7 del; 17 mod
  Patch: https://git.openjdk.java.net/jdk17/pull/267.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17 pull/267/head:pull/267

PR: https://git.openjdk.java.net/jdk17/pull/267