I can't see anything wrong in the configuration. Is it consistent that the tests suceed on `6d71bbb` and fail on `199a90f`?
Does it fail if you **don't** add it to the jclouds closer? That would indicate that the context could be being closed while there are still tasks being submitted or in the execution queue. Could that be the case? --- Reply to this email directly or view it on GitHub: https://github.com/jclouds/jclouds-labs/pull/145#issuecomment-112383275
