[GitHub] [flink] lamber-ken opened a new pull request #8250: [FLINK-11247][runtime] fix NPE when writing the archive json file to FileSystem

[GitBox <gi...@apache.org>]

lamber-ken opened a new pull request #8250: [FLINK-11247][runtime] fix NPE when writing the archive json file to FileSystem
URL: https://github.com/apache/flink/pull/8250
 
 
   ## What is the purpose of the change
   
   if a flink-job reaches the max attempt count, the flink job will write an archive file to FileSystem and shut down.but when `SubtaskExecutionAttemptDetailsHandler` handle the detail attempt info of subtask, met NEP.
   
   for more detail, please see [FLINK-12247](https://issues.apache.org/jira/browse/FLINK-12247).
   
   
   ## Brief change log
   
     - `SubtaskExecutionAttemptAccumulatorsHandler` add judgment null condition for `AccessExecution`.
     - `SubtaskExecutionAttemptDetailsHandler` add judgment null condition for `AccessExecution`.
   
   
   ## Verifying this change
   
   This change is already covered by existing tests
   - *SubtaskExecutionAttemptAccumulatorsHandlerTest*.
   - *SubtaskExecutionAttemptDetailsHandlerTest*.
   
   ## Does this pull request potentially affect one of the following parts:
   
     - Dependencies (does it add or upgrade a dependency): (no)
     - The public API, i.e., is any changed class annotated with `@Public(Evolving)`: (no)
     - The serializers: (no)
     - The runtime per-record code paths (performance sensitive): (yes)
     - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes)
     - The S3 file system connector: (no)
   
   ## Documentation
   
     - Does this pull request introduce a new feature? (no)
     - If yes, how is the feature documented? (not applicable )
   

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