RFR: 8153394: Add Unified Logging to make it easy to trace time taken in initPhase2

[Robbin Ehn]

Hi Rachel

Looks good!

Out of curiosity, what is difference since you wrote
"it's too early for Unified Logging."
in jira ?

Thanks!

/Robbin

On 06/14/2016 10:50 PM, Rachel Protacio wrote:
> Hello!
>
> Please review this small change, adding unified logging for Phase2 initialization, using the TraceTime class. (A jigsaw enhancement, which is why it's going in after FC.)
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8153394
> Open webrev: http://cr.openjdk.java.net/~rprotacio/8153394.00/
>
> Output sample:
>
>    $ java -Xlog:startuptime+modules -version
>    [0.410s][info][modules,startuptime] Phase2 initialization, 0.1302802
>    secs
>    java version "9-internal"
>    Java(TM) SE Runtime Environment (fastdebug build
>    9-internal+0-2016-06-09-092114.rprotaci.8153394)
>    Java HotSpot(TM) 64-Bit Server VM (fastdebug build
>    9-internal+0-2016-06-09-092114.rprotaci.8153394, mixed mode)
>
> Includes added conditions to logging/StartupTimeTest.java. Passes JPRT.
>
> Thanks,
> Rachel