Github user d2r commented on the pull request:
https://github.com/apache/storm/pull/900#issuecomment-162632780
From the travis-ci run, I see two errors from WaterMarkEventsGeneratorTest:
```
Running backtype.storm.windowing.WaterMarkEventGeneratorTest
Tests run: 4, Failures: 0, Errors: 2, Skipped: 0, Time elapsed: 0.651 sec
<<< FAILURE! - in backtype.storm.windowing.WaterMarkEventGeneratorTest
testTrackTwoStreams(backtype.storm.windowing.WaterMarkEventGeneratorTest)
Time elapsed: 0.13 sec <<< ERROR!
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.rangeCheck(ArrayList.java:635)
at java.util.ArrayList.get(ArrayList.java:411)
at
backtype.storm.windowing.WaterMarkEventGeneratorTest.testTrackTwoStreams(WaterMarkEventGeneratorTest.java:90)
testTrackSingleStream(backtype.storm.windowing.WaterMarkEventGeneratorTest)
Time elapsed: 0.191 sec <<< ERROR!
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
at java.util.ArrayList.rangeCheck(ArrayList.java:635)
at java.util.ArrayList.get(ArrayList.java:411)
at
backtype.storm.windowing.WaterMarkEventGeneratorTest.testTrackSingleStream(WaterMarkEventGeneratorTest.java:62)
```
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