Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/1457#issuecomment-165484795
Good catch!
The context class loaded needs to set where ever we reflectively invoke
user code. We simply forgot it at that place...
+1 to merge
---
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 [email protected] or file a JIRA ticket
with INFRA.
---