Then you try to launch streaming sample, test RDD has no output data and, at first sight, no java error stacks, but include warning:
WARN BlockManager: Block input ... replicated to only 0 peer(s) instead of 1 peers
Possible reason is that spark can not execute submitted task, because can not create additional execution instances. It must be at least 2 for streaming. Setting more instances in submit command with same result.
spark-submit --class JavaCustomReceiver -master local[*]
Check user parameter
export SPARK_EXECUTOR_INSTANCES=N
