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Posted to dev@flink.apache.org by "Gary Yao (JIRA)" <ji...@apache.org> on 2017/11/14 09:47:00 UTC

[jira] [Created] (FLINK-8067) User code ClassLoader not set before calling ProcessingTimeCallback

Gary Yao created FLINK-8067:
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             Summary: User code ClassLoader not set before calling ProcessingTimeCallback
                 Key: FLINK-8067
                 URL: https://issues.apache.org/jira/browse/FLINK-8067
             Project: Flink
          Issue Type: Bug
          Components: Streaming
    Affects Versions: 1.4.0
            Reporter: Gary Yao
            Priority: Minor
             Fix For: 1.5.0


The user code ClassLoader is not set as the context ClassLoader for the thread invoking {{ProcessingTimeCallback#onProcessingTime(long timestamp)}}:
https://github.com/apache/flink/blob/84a07a34ac22af14f2dd0319447ca5f45de6d0bb/flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/StreamTask.java#L222

This is problematic, for example, if user code dynamically loads classes in {{ProcessFunction#onTimer(long timestamp, OnTimerContext ctx, Collector<O> out)}} using the current thread's context ClassLoader (also see FLINK-8005).



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