Question about DiagnosticCommand.jfrCheck
Erik Gahlin
erik.gahlin at oracle.com
Thu Dec 28 12:27:42 UTC 2017
Hi Martin,
There will be a JEP outlining how things will work in OpenJDK.
When it comes to Oracle JDK, it is too early to say and should not be
discussed on this mailing list, but feel free to mail me when there is a
JEP.
Cheers!
Erik
> Hi
>
> I have a question about plans for
> com.sun.management.DiagnosticCommand.jfrCheck :
>
> If I run this command in JRE 9+181 i get this output:
>
> "Java Flight Recorder not enabled.
>
> Use VM.unlock_commercial_features to enable."
>
> Will the output change in future versions when the flight recorder
> goes open source?
> Will it work differently in Oracle and OpenJDK JRE ?
>
> My background for asking this question: I do some work on flight
> recorder support in hawt.io <http://hawt.io> and would like to give
> the user proper warning before attempting to unlock commercial
> features at runtime.
>
> Cheers!
>
> Martin Skarsaune
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