Integrated: 8377435: Problem list serviceability/sa/TestJhsdbJstackMixedCore.java

[Chris Plummer]

Problem list serviceability/sa/TestJhsdbJstackMixedCore.java due to [JDK-8377395](https://bugs.openjdk.org/browse/JDK-8377395).

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Commit messages:
 - problem list test

Changes: https://git.openjdk.org/jdk/pull/29624/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29624&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8377435
  Stats: 1 line in 1 file changed: 1 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/29624.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/29624/head:pull/29624

PR: https://git.openjdk.org/jdk/pull/29624