Github user uce commented on a diff in the pull request: https://github.com/apache/flink/pull/2930#discussion_r90775412 --- Diff: flink-runtime/src/main/scala/org/apache/flink/runtime/jobmanager/JobManager.scala --- @@ -1376,6 +1376,24 @@ class JobManager( // addressed to the periodic checkpoint coordinator. log.info("Received message for non-existing checkpoint " + ackMessage.getCheckpointId) + + val classLoader = Option(libraryCacheManager.getClassLoader(jid)) match { + case Some(userCodeClassLoader) => userCodeClassLoader + case None => getClass.getClassLoader + } + + future { + Option(ackMessage.getState()) match { --- End diff -- Should we check the option before submitting the future and only do it if it's non empty?
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