[GitHub] [flink] clay4444 opened a new pull request #10319: [FLINK-14945] [runtime] simplify some code

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clay4444 opened a new pull request #10319: [FLINK-14945] [runtime]  simplify some code
URL: https://github.com/apache/flink/pull/10319
 
 
   ## What is the purpose of the change
   
   I found some code to simplify when using IDEA to inspect the code, so I submit a PR here
   
   
   ## Brief change log
   
   - Replace `Optional.isPresent()` condition with functional style expression
   - simplify some `if` data flow
   
    
   ## Verifying this change
   
   This change is a trivial rework / code simplify without any test coverage.
   
   
   ## 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): (no)
   - Anything that affects deployment or recovery: JobManager (and its components), Checkpointing, Yarn/Mesos, ZooKeeper: (no)
   - 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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