[jdk21u-dev] RFR: 8324637: [aix] Implement support for reporting swap space in jdk.management

[Matthias Baesken]

8324637: [aix] Implement support for reporting swap space in jdk.management

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Commit messages:
 - Backport 33324a59ccdb220250cb74e15ce13af0e99dcb07

Changes: https://git.openjdk.org/jdk21u-dev/pull/243/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=243&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8324637
  Stats: 7 lines in 1 file changed: 6 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/243.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/243/head:pull/243

PR: https://git.openjdk.org/jdk21u-dev/pull/243