So, I found that I can attach with jcmd just fine, just the process listing
does not work.

I can only attach via pid, not via command name, which I think stems from
the same error.

Does anyone have any idea? Should I open a bug report?


On Mon, Apr 9, 2018 at 5:24 PM, Thomas Stüfe <>

> Hi all,
> I try to attach a jcmd to a running process on windows x64, but jcmd only
> lists its own process.
> Both jcmd and process are built from jdk-hs.
> Then I tried attaching jdk-hs tip jcmd to an older VM (jdk 9), did not
> work either.
> Then - and here it gets weird - I tried attaching a jdk9 jcmd to a jdk9
> Vm, and still nothing... am I making a thinking error here? Do I need
> special options on Windows? On Unix this never gave me any trouble.
> Both processes run under the same user, from two console windows. I tried
> both within and without cygwin too, does not make any difference.
> Thanks, Thomas

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