hi submitting a job I get a NPE here: https://github.com/apache/flink/blob/master/flink-clients/src/main/java/org/apache/flink/client/CliFrontend.java#L781
building from source and adding some prints I got that this.lastJobExecutionResult here seems to be null: https://github.com/apache/flink/blob/master/flink-clients/src/main/java/org/apache/flink/client/program/ClusterClient.java#L329 any hint of what may I be doing wrong for this to fail like this?
