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List:       openjdk-serviceability-dev
Subject:    Re: Question about DiagnosticCommand.jfrCheck
From:       Erik Gahlin <erik.gahlin () oracle ! com>
Date:       2017-12-28 12:27:42
Message-ID: 5A44E33E.8030506 () oracle ! com
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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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    <div class="moz-cite-prefix">Hi Martin,<br>
      <br>
      There will be a JEP outlining how things will work in OpenJDK.<br>
      <br>
      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.<br>
      <br>
      Cheers!<br>
      Erik<br>
      <br>
    </div>
    <blockquote
cite="mid:CA+QL28VP9iyZ_iqqj6duar9jjxmSSe7pEawNzta7CVkRW2yRkA@mail.gmail.com"
      type="cite">
      <div dir="ltr">Hi
        <div><br>
        </div>
        <div>I have a question about plans for
          com.sun.management.DiagnosticCommand.jfrCheck :  <br>
          <div><br>
          </div>
          <div>If I run this command in JRE 9+181 i get this output:</div>
          <div><br>
          </div>
          <div>"Java Flight Recorder not enabled.</div>
          <div><br>
          </div>
          <div>Use VM.unlock_commercial_features to enable."</div>
        </div>
        <div><br>
        </div>
        <div>Will the output change in future versions when the flight
          recorder goes open source?  </div>
        <div>Will it work differently in Oracle and OpenJDK JRE ?</div>
        <div><br>
        </div>
        <div>My background for asking this question: I do some work on
          flight recorder support in <a moz-do-not-send="true"
            href="http://hawt.io">hawt.io</a> and would like to give the
          user proper warning before attempting to unlock commercial
          features at runtime.  </div>
        <div><br>
        </div>
        <div>Cheers!</div>
        <div><br>
        </div>
        <div>Martin Skarsaune</div>
      </div>
    </blockquote>
    <br>
  </body>
</html>


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