RFR: 8252842: Extend jmap to support parallel heap dump

Fri Feb 19 10:11:14 UTC 2021

On Thu, 18 Feb 2021 16:38:04 GMT, Chris Plummer <cjplummer at openjdk.org> wrote:

> Or the other option would be to eat the exception and produce an error message saying that the `parallel` option is not supported by the target VM. I don't think the user should be exposed to the "Operation dumpheapext not recognized" message.

Hi Chris,
   I prefer this one as it keep consistent with the old version of jmap -dump command when processing "parallel=" option.
   I have updated the PR with the change. 
   Thanks.

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PR: https://git.openjdk.java.net/jdk/pull/2261