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https://issues.apache.org/jira/browse/FLINK-2936?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Fabian Hueske updated FLINK-2936:
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Fix Version/s: (was: 0.10.0)
1.0.0
> 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
> 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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