[jira] [Created] (FLINK-10663) Closing StreamingFileSink can cause NPE

[Shang Yuanchun (Jira)]

Gary Yao created FLINK-10663:
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             Summary: Closing StreamingFileSink can cause NPE
                 Key: FLINK-10663
                 URL: https://issues.apache.org/jira/browse/FLINK-10663
             Project: Flink
          Issue Type: Bug
          Components: filesystem-connector, Streaming Connectors
    Affects Versions: 1.6.1, 1.7.0
         Environment: Rev cb141940821bcf62f4102dfd5c76aff99d0c15d1
            Reporter: Gary Yao


*Description*
If the sink is closed before it's state is initialized, an NPE is thrown.

*Stacktrace*
{code}
java.lang.NullPointerException
        at org.apache.flink.streaming.api.functions.sink.filesystem.StreamingFileSink.close(StreamingFileSink.java:378)
        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:477)
        at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:378)
        at org.apache.flink.runtime.taskmanager.Task.run(Task.java:704)
        at java.lang.Thread.run(Thread.java:748)
{code}



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