[jira] [Closed] (SLING-6259) The PackageAdminClassLoader cannot load classes from bundles providing older API versions

["Radu Cotescu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SLING-6259?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Radu Cotescu closed SLING-6259.
-------------------------------

> The PackageAdminClassLoader cannot load classes from bundles providing older API versions
> -----------------------------------------------------------------------------------------
>
>                 Key: SLING-6259
>                 URL: https://issues.apache.org/jira/browse/SLING-6259
>             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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