SLING-6258 - The PackageAdminClassLoader cannot load classes from bundles providing older API versions * made sure to lock-down the bundle which provides first a resource / class from a requested package so that subsequent calls for resolving classes / resources from the same package will always use the same bundle
sling/trunk/bundles/commons/classloader/src/main/java/org/apache/sling/commons/classloader/impl/PackageAdminClassLoader.java