Tom Rybak created KAFKA-3784:
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             Summary: TimeWindows#windowsFor misidentifies some windows if 
TimeWindows#advanceBy is used
                 Key: KAFKA-3784
                 URL: https://issues.apache.org/jira/browse/KAFKA-3784
             Project: Kafka
          Issue Type: Bug
          Components: core
    Affects Versions: 0.10.0.0
            Reporter: Tom Rybak
            Priority: Minor


Using a time window of size 6 minutes with a 5 minute advanceBy results in some 
of the timestamped data being inserted into the previous overlapping window 
even though the event's timestamp > that window's end time. 

The fault lies in TimeWindows#windowsFor which does not check that all the 
windows it's adding have an endTime > event's timestamp. 




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