aII-clouds opened a new pull request, #23563: URL: https://github.com/apache/flink/pull/23563
## What is the purpose of the change This PR fixes a bug in the DataOutputSerializer's method writeBytes(String) and adds tests. The method writeBytes takes a string as an argument and writes it to a byte array. The bug occurs because the positions in the byte array are updated by writeBytes, even though they are updated by the method writeByte that writeBytes calls. Although this method is not called by any other class in Flink, it has the potential to cause problems, so we've fixed the bug and added related tests. ## Brief change log * Remove the code that updates the position from the implementation of the method writeBytes * Add a test to serialize a given string * Add a test to serialize an arbitrary string ## Verifying this change This change added tests and can be verified as follows: * Added a test to serialize the string "Hello, World!" and verify that the result is correct. * Added a test to serialize an arbitrary string and verify that the result is correct. ## 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: yes - 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 -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: issues-unsubscr...@flink.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org