Péter Szabó created FLINK-1757:
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Summary: 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
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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