Dawid Wysakowicz created FLINK-12297:
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Summary: We should clean the closure for OutputTags
Key: FLINK-12297
URL: https://issues.apache.org/jira/browse/FLINK-12297
Project: Flink
Issue Type: Bug
Components: Library / CEP
Affects Versions: 1.8.0
Reporter: Dawid Wysakowicz
Fix For: 1.9.0, 1.8.1
Right now we do not invoke closure cleaner on output tags. Therefore such code:
{code}
@Test
public void testFlatSelectSerialization() throws Exception {
StreamExecutionEnvironment env =
StreamExecutionEnvironment.getExecutionEnvironment();
DataStreamSource<Integer> elements = env.fromElements(1, 2, 3);
OutputTag<Integer> outputTag = new OutputTag<Integer>("AAA") {};
CEP.pattern(elements, Pattern.begin("A")).flatSelect(
outputTag,
new PatternFlatTimeoutFunction<Integer, Integer>() {
@Override
public void timeout(
Map<String, List<Integer>> pattern,
long timeoutTimestamp,
Collector<Integer> out) throws
Exception {
}
},
new PatternFlatSelectFunction<Integer, Object>() {
@Override
public void flatSelect(Map<String,
List<Integer>> pattern, Collector<Object> out) throws Exception {
}
}
);
env.execute();
}
{code}
will fail with {{The implementation of the PatternFlatSelectAdapter is not
serializable. }} exception
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