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https://issues.apache.org/jira/browse/FLINK-1757?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Robert Metzger resolved FLINK-1757.
-----------------------------------
Resolution: Fixed
Fix Version/s: 0.9
> java.lang.ClassCastException is thrown while summing Short values on window
> ---------------------------------------------------------------------------
>
> Key: FLINK-1757
> URL: https://issues.apache.org/jira/browse/FLINK-1757
> Project: Flink
> Issue Type: Bug
> Components: Streaming
> Reporter: Péter Szabó
> Assignee: Péter Szabó
> Fix For: 0.9
>
>
> java.lang.ClassCastException is thrown while summing Short values on window
> Stack Trace:
> Caused by: java.lang.RuntimeException: java.lang.ClassCastException:
> java.lang.Integer cannot be cast to java.lang.Short
> at
> org.apache.flink.streaming.api.streamvertex.OutputHandler.invokeUserFunction(OutputHandler.java:232)
> at
> org.apache.flink.streaming.api.streamvertex.StreamVertex.invoke(StreamVertex.java:121)
> at
> org.apache.flink.runtime.execution.RuntimeEnvironment.run(RuntimeEnvironment.java:205)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.ClassCastException: java.lang.Integer cannot be cast to
> java.lang.Short
> at
> org.apache.flink.api.common.typeutils.base.ShortSerializer.copy(ShortSerializer.java:27)
> at
> org.apache.flink.api.java.typeutils.runtime.TupleSerializer.copy(TupleSerializer.java:95)
> at
> org.apache.flink.api.java.typeutils.runtime.TupleSerializer.copy(TupleSerializer.java:30)
> at
> org.apache.flink.streaming.api.invokable.StreamInvokable.copy(StreamInvokable.java:166)
> at
> org.apache.flink.streaming.api.invokable.SinkInvokable.collect(SinkInvokable.java:46)
> at
> org.apache.flink.streaming.api.collector.DirectedCollectorWrapper.collect(DirectedCollectorWrapper.java:95)
> at
> org.apache.flink.streaming.api.invokable.operator.GroupedReduceInvokable.reduce(GroupedReduceInvokable.java:47)
> at
> org.apache.flink.streaming.api.invokable.operator.StreamReduceInvokable.invoke(StreamReduceInvokable.java:39)
> at
> org.apache.flink.streaming.api.streamvertex.StreamVertex.invokeUserFunction(StreamVertex.java:85)
> at
> org.apache.flink.streaming.api.streamvertex.OutputHandler.invokeUserFunction(OutputHandler.java:229)
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