Add a jcmd tool to print all threads and vthreads info (including unmounted vts and lock information)

[Alan Bateman]

On 03/04/2025 10:13, 唐佳未(佳未) wrote:
> I think it may be useful to add a tool which can print more 
> information about the unmounted virtual threads after the JEP491.
>
> I knew that the`jcmd Thread.dump_to_file` cmd could generate a 
> json/text file to give a view of the all the threads and virtual 
> threads but it lacks information about the locks after JEP491.

There is work in progress to update the existing command to include lock 
information. So it would be both the plain text and JSON object formats. 
I think this would be better than introducing yet another command that 
is plain text only.

-Alan
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