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https://issues.apache.org/jira/browse/FLINK-20250?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17235527#comment-17235527
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Jark Wu commented on FLINK-20250:
---------------------------------
Yes. We can do that.
> NPE when invoking AsyncLookupJoinRunner#close method
> ----------------------------------------------------
>
> Key: FLINK-20250
> URL: https://issues.apache.org/jira/browse/FLINK-20250
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / Runtime
> Affects Versions: 1.12.0
> Reporter: hailong wang
> Priority: Major
> Fix For: 1.13.0
>
>
> NPE when invoking AsyncLookupJoinRunner#close method,
> {code:java}
> java.lang.NullPointerException
> at
> org.apache.flink.table.runtime.operators.join.lookup.AsyncLookupJoinRunner.close(AsyncLookupJoinRunner.java:156)
> at
> org.apache.flink.api.common.functions.util.FunctionUtils.closeFunction(FunctionUtils.java:43)
> at
> org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.dispose(AbstractUdfStreamOperator.java:117)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.disposeAllOperators(StreamTask.java:670)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.cleanUpInvoke(StreamTask.java:581)
> at
> org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:483)
> at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:709)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:533)
> at java.lang.Thread.run(Thread.java:745)
> {code}
> This is because the job failed before it was initialized.
> So We can add a null condition for allResultFutures object.
>
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