Uploaded image for project: 'Sling'
  1. Sling
  2. SLING-6259

The PackageAdminClassLoader cannot load classes from bundles providing older API versions

    XMLWordPrintableJSON

Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Duplicate
    • Commons ClassLoader 1.3.2
    • Commons ClassLoader 1.3.6
    • Commons
    • None

    Description

      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.

      Attachments

        Issue Links

          Activity

            People

              radu Radu Cotescu
              radu Radu Cotescu
              Votes:
              0 Vote for this issue
              Watchers:
              1 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: