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
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