[jira] [Commented] (SLING-6258) The PackageAdminClassLoader cannot load classes from bundles providing older API versions

2016-11-10 Thread Felix Meschberger (JIRA) 

[ 
https://issues.apache.org/jira/browse/SLING-6258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15654207#comment-15654207
 ] 

Felix Meschberger commented on SLING-6258:
--

[~radu.cotescu] From what I can tell, this looks good, yes. Thanks.

> The PackageAdminClassLoader cannot load classes from bundles providing older 
> API versions
> -
>
> Key: SLING-6258
> URL: https://issues.apache.org/jira/browse/SLING-6258
> Project: Sling
>  Issue Type: Bug
>  Components: Commons
>Affects Versions: Commons ClassLoader 1.3.2
>Reporter: Radu Cotescu
>Assignee: Radu Cotescu
> Fix For: Commons ClassLoader 1.3.6
>
>
> The {{org.apache.sling.commons.classloader.impl.PackageAdminClassLoader}} 
> cannot correctly load classes that exist only in bundles providing older API 
> implementations if another bundle providing the same API, but newer version, 
> exists on the instance.
> Assuming bundles A and B both export {{org.example}}, A with version 
> {{1.0.0}} and B with version {{2.0.0}}, when the 
> {{org.apache.sling.commons.classloader.impl.PackageAdminClassLoader}} is 
> queried to resolve a class only available in A, it will try to resolve it 
> from B. This happens because the 
> {{org.apache.sling.commons.classloader.impl.PackageAdminClassLoader}} only 
> checks the bundle that provides the highest API (in terms of version number) 
> of the class' providing package.



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[jira] [Commented] (SLING-6258) The PackageAdminClassLoader cannot load classes from bundles providing older API versions

2016-11-10 Thread Radu Cotescu (JIRA) 

[ 
https://issues.apache.org/jira/browse/SLING-6258?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=15654186#comment-15654186
 ] 

Radu Cotescu commented on SLING-6258:
-

[~fmeschbe], I've tried to address your concerns in 
https://svn.apache.org/r1769127. Could you please review the changes? :)

> The PackageAdminClassLoader cannot load classes from bundles providing older 
> API versions
> -
>
> Key: SLING-6258
> URL: https://issues.apache.org/jira/browse/SLING-6258
> Project: Sling
>  Issue Type: Bug
>  Components: Commons
>Affects Versions: Commons ClassLoader 1.3.2
>Reporter: Radu Cotescu
>Assignee: Radu Cotescu
> Fix For: Commons ClassLoader 1.3.6
>
>
> The {{org.apache.sling.commons.classloader.impl.PackageAdminClassLoader}} 
> cannot correctly load classes that exist only in bundles providing older API 
> implementations if another bundle providing the same API, but newer version, 
> exists on the instance.
> Assuming bundles A and B both export {{org.example}}, A with version 
> {{1.0.0}} and B with version {{2.0.0}}, when the 
> {{org.apache.sling.commons.classloader.impl.PackageAdminClassLoader}} is 
> queried to resolve a class only available in A, it will try to resolve it 
> from B. This happens because the 
> {{org.apache.sling.commons.classloader.impl.PackageAdminClassLoader}} only 
> checks the bundle that provides the highest API (in terms of version number) 
> of the class' providing package.



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