RFR: JDK-8261034: improve jcmd GC.class_histogram to support parallel

Thu Feb 4 03:47:40 UTC 2021

On Thu, 4 Feb 2021 03:40:26 GMT, Chris Plummer <cjplummer at openjdk.org> wrote:

> > I am not reviewer, but maybe you could add test for "parallel" in BasicJMapTest.java.
> 
> That test is for the `jmap` command, not the `GC.class_histogram` jcmd. As I pointed out, there are tests in `test/hotpot/jtreg/serviceability/dcmd/gc` that already test `GC.class_histogram`. That would be a better starting point.

Correct!  Thanks for point it out, and sorry for misleading the test case.

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PR: https://git.openjdk.java.net/jdk/pull/2379