Ethanlm opened a new pull request #3247: [STORM-3619] Add null check for topology name URL: https://github.com/apache/storm/pull/3247 https://issues.apache.org/jira/browse/STORM-3619 With this change, ``` Exception in thread "main" java.lang.IllegalArgumentException: Topology name 'null' is not valid. It can't be null and it must match ^[^/.:\\]+$ at org.apache.storm.utils.Utils.validateTopologyName(Utils.java:1821) at org.apache.storm.StormSubmitter.submitTopologyAs(StormSubmitter.java:225) at org.apache.storm.StormSubmitter.submitTopology(StormSubmitter.java:210) at org.apache.storm.StormSubmitter.submitTopologyWithProgressBar(StormSubmitter.java:416) at org.apache.storm.StormSubmitter.submitTopologyWithProgressBar(StormSubmitter.java:397) at com.example.SimplifiedTwoCompTopology.main(SimplifiedTwoCompTopology.java:49) ```
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