Github user StephanEwen commented on the issue: https://github.com/apache/flink/pull/4554 Ah, I see - that is probably related to reading resources from a jar file (like the config), methods like `getResourceAsStream()`. I can see that the "delegate to parent after child" lookup logic might not quite work for that, yes. I think that particular bug you encountered there is almost an argument to not change the logic on the client, yet. Since we would run the entire Flink code through that classloader as well, the implications are trickier than in the runtime task, where we only instantiate the user code functions.
--- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. ---