TisonKun opened a new pull request #10235: [FLINK-14839][config] Let JobGraph#classpaths become non-null URL: https://github.com/apache/flink/pull/10235 ## What is the purpose of the change JobGraph#userJars & JobGraph#classpaths are non-null, so we can improve our codes a bit. ## Brief change log - Let JobGraph#classpaths become non-null. Preciously, we now add classpaths into an `ArrayList` instead of changing the reference. - Thus, rename `setClasspaths` to `addClasspaths` - BlobLibraryCacheManager#registerTask never receives nullable parameter, indeed. ## Verifying this change This change is a trivial rework / code cleanup 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) cc @zentol @GJL
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