hotspot messages about the future?

David Holmes David.Holmes at
Fri Oct 8 15:54:13 PDT 2010

Kelly O'Hair said the following on 10/09/10 05:21:
> When did the  hotspot -XX options start spitting out messages like this?

I can't tell exactly, but this was there when HS moved to Mercurial.

I think it is done whenever an option has become obsolete, or is not 
applicable/appropriate for the given usage.


> svc6<1263> java -XX:+CMSClassUnloadingEnabled 
> -XX:+CMSPermGenSweepingEnabled -version
> Please use CMSClassUnloadingEnabled in place of 
> CMSPermGenSweepingEnabled in the future
> java version "1.6.0_10"
> Java(TM) SE Runtime Environment (build 1.6.0_10-b33)
> Java HotSpot(TM) Server VM (build 11.0-b15, mixed mode)
> I always thought silence was golden?
> -kto

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