Github user jtstorck commented on a diff in the pull request:
https://github.com/apache/nifi/pull/1539#discussion_r103770451
--- Diff:
nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-nar-utils/src/main/java/org/apache/nifi/nar/ExtensionManager.java
---
@@ -199,8 +199,20 @@ public static ClassLoader getClassLoader(final String
classType, final String in
// then make a new InstanceClassLoader that is a full copy of
the NAR Class Loader, otherwise create an empty
// InstanceClassLoader that has the NAR ClassLoader as a parent
if (requiresInstanceClassLoading.contains(classType) &&
(registeredClassLoader instanceof URLClassLoader)) {
- final URLClassLoader registeredUrlClassLoader =
(URLClassLoader) registeredClassLoader;
- instanceClassLoader = new
InstanceClassLoader(instanceIdentifier, classType,
registeredUrlClassLoader.getURLs(), registeredUrlClassLoader.getParent());
+ final Set<URL> classLoaderResources = new HashSet<>();
+
+ // if the registered class loader is a NAR class loader
then walk the chain of class loaders until
+ // finding a non-NAR class loader, and build up a list of
all URLs along the way
+ while (registeredClassLoader != null &&
registeredClassLoader instanceof NarClassLoader) {
+ final NarClassLoader narClassLoader = (NarClassLoader)
registeredClassLoader;
+ for (URL classLoaderResource :
narClassLoader.getURLs()) {
+ classLoaderResources.add(classLoaderResource);
+ }
+ registeredClassLoader = narClassLoader.getParent();
+ }
--- End diff --
@olegz This PR will be updated with a different approach. This change will
be reverted, overall.
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