Heads-up: profiler UX changes

[Aleksey Shipilev]

Hi,

We have pushed the fix for:
 https://bugs.openjdk.java.net/browse/CODETOOLS-7901387

...which now enables profilers to use profiler options from the command
line and/or API. There are a few things left to do to smooth the edges,
but I would appreciate the testing this week (next 36 hrs would be best!).

Try, for example, -prof stack:help or -prof perfasm:help.

Thanks,
-Aleksey.