[jdk18] Integrated: 8278521: ProblemList java/lang/management/ThreadMXBean/ThreadLists.java

[Daniel D.Daugherty]

A trivial fix to ProblemList java/lang/management/ThreadMXBean/ThreadLists.java on all configs.

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Commit messages:
 - 8278521: ProblemList java/lang/management/ThreadMXBean/ThreadLists.java

Changes: https://git.openjdk.java.net/jdk18/pull/3/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk18&pr=3&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8278521
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk18/pull/3.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk18 pull/3/head:pull/3

PR: https://git.openjdk.java.net/jdk18/pull/3