XComp opened a new pull request, #21738:
URL: https://github.com/apache/flink/pull/21738
## What is the purpose of the change
The intention is to make the code more robust to test failures. We do no
enable asserts in the test runs. The JVM has asserts disabled by default. That
would mean that invalid state would go unnoticed if we continue to use assert
instead of Preconditions.
## Brief change log
* replaced `assert` with Precondition checks
## 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, Kubernetes/Yarn, 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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