Hi Charles,

the pull request mentions a class named Java7ClassValue - does this mean it's a 
Java 7 issue or is it reproducible on 8 and maybe even 9? Names can be 
misleading. ;-)

To clarify: by what means is the ClassValue removed in the JRuby implementation?

I agree this should not happen.



> Am 06.08.2015 um 20:26 schrieb Charles Oliver Nutter <head...@headius.com>:
> Pardon me if this has been discussed before, but we had a bug (with
> fix) reported today that seems to indicate that the JVM is rooting
> objects put into a ClassValue even if the ClassValue goes away.
> Here's the pull request: https://github.com/jruby/jruby/pull/3228
> And here's one example of the root trace leading back to our JRuby
> runtime. All the roots appear to be VM-level code:
> https://dl.dropboxusercontent.com/u/9213410/class-values-leak.png
> Is this expected? If we have to stuff a WeakReference into the
> ClassValue it seriously diminishes its utility to us.
> - Charlie


Dr. Michael Haupt | Principal Member of Technical Staff
Phone: +49 331 200 7277 | Fax: +49 331 200 7561
Oracle Java Platform Group | LangTools Team | Nashorn
Oracle Deutschland B.V. & Co. KG, Schiffbauergasse 14 | 14467 Potsdam, Germany
 <http://www.oracle.com/commitment>     Oracle is committed to developing 
practices and products that help protect the environment

mlvm-dev mailing list

Reply via email to