RFR: JDK-8153186: Convert TraceGCTaskThread to use unified logging

[Thomas Schatzl]

Hi,

On Thu, 2016-03-31 at 14:23 +0200, Bengt Rutisson wrote:
> Hi everyone,
> 
> Could I have a couple of reviews for this change?
> 
> http://cr.openjdk.java.net/~brutisso/8153186/webrev.00/
> https://bugs.openjdk.java.net/browse/JDK-8153186
> 
> The logging guarded by TraceGCTaskThread should be converted to use
> the 
> unified logging framework.

  - these log messages seem to be gc specific, so maybe add the gc-id
decoration.

  - this change simply removes the flag from the available options.
Shouldn't it be added to the table we have that translates old flags to
new logging somewhere? (I do not have an opinion about this, just
asking).

Thanks,
  Thomas