RFR(XXS): 8149519: Investigate implementation of java.specification.version

Volker Simonis volker.simonis at gmail.com
Wed Apr 27 09:54:05 UTC 2016

On Wed, Apr 27, 2016 at 11:15 AM, Alan Bateman <Alan.Bateman at oracle.com> wrote:
> On 27/04/2016 09:28, Volker Simonis wrote:
>> Ping - shouldn't we fix this issue before JDK 9 Feature Complete?
>> Could you please also comment on my remarks regarding the relation of
>> java.lang.Package.getSpecificationVersion() to JEP and 223 and and my
>> question why the Version class is not in a standard java package.
> One thing to be aware of is that specification for legacy java.lang.Package
> has been significantly overhauled as part of updating the platform to
> support modules. The javadoc to read is the updated class description where
> it specifies the properties of Packages automatically created for types in
> named modules, also the API note in the 8-parameter
> ClassLoader.definePackage method. The TL;DR summary is that
> getSpecificationVersion() will return null when invoking on Package objects
> for any types in any of the system module (or any of the modules on the
> module path too). So I don't think JEP 223 needs to be concerned with it.

Thanks for the clarification. As far as I can see, this updated
javadoc is still only in the jigsaw repo so I didn't read it before.

> JDK-8144062 is tracking the replacement of jdk.Version with a standard API.

Thanks for providing the link. I wasn't aware of it. Yet another bug
to follow on JBS :)


> -Alan.

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