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https://issues.apache.org/jira/browse/FLINK-12297?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16864624#comment-16864624
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Aljoscha Krettek commented on FLINK-12297:
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Merge on release-1.8 in 159c52769045853bc95a0efaae8ab2c7675e1d42
> Make ClosureCleaner recursive
> -----------------------------
>
> Key: FLINK-12297
> URL: https://issues.apache.org/jira/browse/FLINK-12297
> Project: Flink
> Issue Type: Bug
> Components: API / DataSet, API / DataStream
> Affects Versions: 1.8.0
> Reporter: Dawid Wysakowicz
> Assignee: Aitozi
> Priority: Blocker
> Labels: pull-request-available
> Fix For: 1.9.0, 1.8.1
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> 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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