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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2936) ClassCastException when using EventTimeSourceFunction in non-EventTime program
Date Fri, 11 Dec 2015 16:38:11 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2936?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15052990#comment-15052990
] 

ASF GitHub Bot commented on FLINK-2936:
---------------------------------------

Github user asfgit closed the pull request at:

    https://github.com/apache/flink/pull/1448


> ClassCastException when using EventTimeSourceFunction in non-EventTime program
> ------------------------------------------------------------------------------
>
>                 Key: FLINK-2936
>                 URL: https://issues.apache.org/jira/browse/FLINK-2936
>             Project: Flink
>          Issue Type: Improvement
>          Components: Streaming
>    Affects Versions: 0.10.0
>            Reporter: Fabian Hueske
>            Assignee: Aljoscha Krettek
>             Fix For: 1.0.0
>
>
> Using an {{EventTimeSourceFunction}} in a DataStream programs that does not operate with
{{TimeCharacteristic.EventTime}} leads to a {{ClassCastException}} when the first {{Watermark}}
is emitted:
> {code}
> Caused by: java.lang.ClassCastException: org.apache.flink.streaming.api.watermark.Watermark
cannot be cast to org.apache.flink.streaming.runtime.streamrecord.StreamRecord
> {code}
> This exception is not very helpful for users that simply for got to set the correct {{TimeCharacteristic}}
and should be improved.



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