RFR: 8298221: Problem list gc/metaspace/CompressedClassSpaceSizeInJmapHeap.java on macosx-aarch64

[Chris Plummer]

Problem list gc/metaspace/CompressedClassSpaceSizeInJmapHeap.java on macosx-aarch64. It's causing the hosts to take 2 days or more to finish up the test task.

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Commit messages:
 - Remove extra blank line.
 - Problem list gc/metaspace/CompressedClassSpaceSizeInJmapHeap.java on macosx-aarch64

Changes: https://git.openjdk.org/jdk/pull/11549/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=11549&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8298221
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/11549.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11549/head:pull/11549

PR: https://git.openjdk.org/jdk/pull/11549