Github user hmcl commented on a diff in the pull request: https://github.com/apache/storm/pull/836#discussion_r43549539 --- Diff: storm-core/src/jvm/storm/trident/topology/TridentTopologyBuilder.java --- @@ -248,8 +250,9 @@ public StormTopology buildTopology() { } private void markBatchGroups(String component, Map<String, String> batchGroups) { - for(String stream: batchGroups.keySet()) { - _batchIds.put(new GlobalStreamId(component, stream), batchGroups.get(stream)); + for(Map.Entry<String, String> entry: batchGroups.entrySet()) { + String stream = entry.getKey(); + _batchIds.put(new GlobalStreamId(component, stream), entry.getValue()); --- End diff -- Unless the variable is created to make the code easier to read, this could be simplified to _batchIds.put(new GlobalStreamId(component, entry.getKey()), entry.getValue());
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