Protocol version of Attach API

[Yasumasa Suenaga]

2019年2月26日(火) 15:47 Thomas Stüfe <thomas.stuefe at gmail.com>:
>
> Hi David, Yasumasa,
>
>>
>>
>> > Do we support connection to later VMs from earlier JDK tools?
>>
>> I could not find the spec about this.
>> So I asked to serviceability folks before filing this to JBS :-)
>>
>
> Just to chime in on that, I do not know if it is specified but it is certainly very handy in daily use. I often use old jcmd tools to connect to newer VMs. I always thought that was a neat design.

I agree with Thomas,
but I think we can update protocol version and reject request(s) from
jcmd and other tools on earlier release.

I guess serviceability tools like a jhsdb are recommended in use with
same version.


Thanks,

Yasumasa


> ..Thomas
>