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https://issues.apache.org/jira/browse/FELIX-682?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12623264#action_12623264
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Guillaume Sauthier commented on FELIX-682:
------------------------------------------

I agree with Sahoo, that would be great for Felix to support the Java Package 
API (with just values read from the MANIFEST, no OSGi headers).
So that clients (that are not OSGi aware) of that API will have at least, 
reasonnable default values.

In EasyBeans (that can run in both Java SE and OSGi environment), we use that 
to simply write "EasyBeans <version> started in ... ".

Notice that Equinox honors the Implementation-Version attribute.

> Package.getImplementationVersion returns null for package loaded by Felix
> -------------------------------------------------------------------------
>
>                 Key: FELIX-682
>                 URL: https://issues.apache.org/jira/browse/FELIX-682
>             Project: Felix
>          Issue Type: Wish
>          Components: Framework
>    Affects Versions: felix-1.0.4
>         Environment: NA
>            Reporter: Sahoo
>             Fix For: felix-1.2.0
>
>         Attachments: Felix-682.zip, java-pkg-versioning-spec-bug.zip
>
>
> Even though MANIFEST.MF has proper entry for Implementation-Version, 
> Package.getImplementationVersion() returns null. A  reproducible test case is 
> attached. It is described below:
> public class Foo implements BundleActivator {
>     public void start(BundleContext context) throws Exception {
>         Package p = getClass().getPackage();
>         System.out.println(p);
>         System.out.println(p.getImplementationVersion());
>    }
> }
> The headers for this bundle are:
> osgi-test1 (10)
> ---------------
> Tool = Bnd-0.0.255
> Bundle-Activator = sahoo.osgitest1.Foo
> Implementation-Version = 1.0-SNAPSHOT
> Implementation-Vendor-Id = sahoo
> Bundle-Version = 1.0.0.SNAPSHOT
> Build-Jdk = 1.5.0_13-rev
> Implementation-Title = osgi-test1
> Created-By = Apache Maven Bundle Plugin
> Bundle-ManifestVersion = 2
> Manifest-Version = 1.0
> Bnd-LastModified = 1218821794953
> Private-Package = sahoo.osgitest1
> Bundle-Name = osgi-test1
> Built-By = ss141213
> Import-Package = org.osgi.framework;version="1.3"
> Bundle-SymbolicName = sahoo.osgi-test1

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