[verona.stage] RFR 8139986: Store debug level in java.vm.debug and conditionally print in "java -version"

[Magnus Ihse Bursie]

Hi Alejandro,

On 2015-11-03 18:45, Alejandro E Murillo wrote:
> Please review these changes:
>
> bug: https://bugs.openjdk.java.net/browse/JDK-8139986
> Webrev: http://cr.openjdk.java.net/~amurillo/9/8139986/

Looks good to me.

/Magnus

>
> Background:
> These changes introduce a new system property named "jdk.debug" 
> intended to
> identify the type of the build. The build system has already been 
> modified (see [1])
> to provide the build type through the "--with-debug-level" configure 
> option,
> and  to remove that info from the (new) version string and
> consequently from the "java.version" and "java.vm.version" system 
> properties.
>
> Here, the configure debug level is used to initialize the value of the 
> "jdk.debug" system
> property. There are also changes to adapt any code that relied on the 
> value of those version
> properties to determine the  build type. They were changed to use this 
> new property.
>
> The Launcher output was also modified to look as follows:
>
> jdk.debug = (“*foo*” != “release”)
>             $java -version
>             java version "9-ea"
>             Java(TM) SE Runtime Environment (*foo *build 9-ea+88)
>            Java HotSpot(TM) 64-Bit Server VM (*foo *build 9-ea+88, 
> mixed mode)
>
> jdk.debug = “release”: (no change)
>
> $java -version
> java version "9-ea"
> Java(TM) SE Runtime Environment (build 9-ea+88)
> Java HotSpot(TM) 64-Bit Server VM (build 9-ea+88, mixed mode)
>
>
> All this will be described and updated in the JEP-223 doc [2] shortly.
>
> [1] https://bugs.openjdk.java.net/browse/JDK-8139951
> [2] http://openjdk.java.net/jeps/223
>
> Thanks
>