RFR: JDK-8187498: Add a -Xmanagement flag as syntactic sugar for -Dcom.sun.management.jmxremote.* properties

[Harsha Wardhana B]

Hi All,

After internal discussions, below format for management flags was agreed 
upon.

1. --start-management-agent port=1234,ssl=on        (space seperator)
or
2. --start-management-agent=port=1234,ssl=on        ('=' seperator)

If option 1 is specified, it will be converted to option 2 by the java 
launcher before it is passed onto VM.

With above GNU long format for management options, specifying arguments 
is mandatory unlike before.

--start-management-agent will not be recognized in the current format 
and hence will not default to --start-management-agent=local=true.

Below is the webrev with above changes and corresponding tests.

http://cr.openjdk.java.net/~hb/8187498/webrev.01/

Please review and comment.

Thanks
Harsha

On Monday 29 January 2018 03:14 PM, Harsha Wardhana B wrote:
> Hi Alan,
>
> I am not fully aware about Java launcher or how it passes options to 
> VM. Let me check with some other folks and get back to you.
>
> Thanks
> Harsha
>
> On Monday 29 January 2018 01:55 PM, Alan Bateman wrote:
>>
>>
>> On 29/01/2018 05:20, Harsha Wardhana B wrote:
>>> Hi Mandy,Alan,
>>>
>>> Thanks for your inputs.
>>> If I keep it as launcher option, it may need to know JMX agent flags 
>>> which may need to be extended in future.
>>> I would prefer making it a VM option. I will make the required 
>>> changes and send out an updated webrev.
>> I think Mandy's suggestion is to just transform --management 
>> <options> so a form that the VM can read. The launcher will need to 
>> replace the space anyway as the VM only accepts "=".
>>
>> -Alan
>