RFR: 8263636: Add --disableregistry option to jhsdb debugd [v2]

[Yasumasa Suenaga]

On Mon, 5 Apr 2021 20:50:30 GMT, Chris Plummer <cjplummer at openjdk.org> wrote:

>> Yasumasa Suenaga has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Fix comments
>
> test/hotspot/jtreg/serviceability/sa/sadebugd/DebugdRmidTest.java line 51:
> 
>> 49:         JDKToolLauncher rmidLauncher = JDKToolLauncher.createUsingTestJDK("rmid");
>> 50:         rmidLauncher.addToolArg("-J-Dsun.rmi.activation.execPolicy=none");
>> 51:         rmidLauncher.addToolArg("-J--add-modules=jdk.hotspot.agent");
> 
> Is this really needed? Although SA will be using rmid, I don't understand why rmid needs to know about SA.

They are needed.

If we don't give `execPolicy=none`, we can see warning on console.
SA code would run on rmid, so we need to add module.

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PR: https://git.openjdk.java.net/jdk/pull/3233