[jdk17u-dev] RFR: 8304074: [JMX] Add an approximation of total bytes allocated on the Java heap by the JVM

[Volker Simonis]

On Sun, 19 Nov 2023 22:04:46 GMT, Paul Hohensee <phh at openjdk.org> wrote:

> I'd like to backport the definition and implementation of com.sun.management.ThreadMXBean.getTotalThreadAllocatedBytes to 17u. The backport CSR is [JDK-8320375](https://bugs.openjdk.org/browse/JDK-8320375). A follow-up bugfix backport of [JDK-8313081](https://bugs.openjdk.org/browse/JDK-8313081) will be done following this backport. The combined backports have been in production at Amazon for two months with no issues. The backport uses the reserved6 slot in jmm.h in order to preserve binary compatibility with 17u. Per current policy, there is no update to JMM_VERSION in jmm.h and the new method is marked
> 
> @since 17.0.10

Looks good to me. Thanks for doing the downport.

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

Marked as reviewed by simonis (Reviewer).

PR Review: https://git.openjdk.org/jdk17u-dev/pull/1971#pullrequestreview-1742168374