RFR: 8304074: [JMX] Add an approximation of JVM process allocated bytes

Thu May 4 20:04:15 UTC 2023

Please review this addition to com.sun.management.ThreadMXBean that returns the total number of bytes allocated on the Java heap since JVM launch by both terminated and live threads.

Because this PR adds a new interface method, I've updated the JMM_VERSION to 4, but would be happy to update it to 3_1 instead.

-------------

Commit messages:
 - 8304074: [JMX] Add an approximation of JVM process allocated bytes

Changes: https://git.openjdk.org/jdk/pull/13814/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13814&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8304074
  Stats: 222 lines in 10 files changed: 173 ins; 16 del; 33 mod
  Patch: https://git.openjdk.org/jdk/pull/13814.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13814/head:pull/13814

PR: https://git.openjdk.org/jdk/pull/13814