slinkydeveloper opened a new pull request #18264:
URL: https://github.com/apache/flink/pull/18264
## What is the purpose of the change
This PR contains several fixes to harden our json utilities and ser/de for
the persisted plan
## Brief change log
* Fix `JsonSerdeUtil` to create just one instance of `ObjectMapper`, as its
allocation tends to be heavy and error prone. This also allows us to test in
the unit tests the same `ObjectMapper` that is going to be used in the real
environment (eventually testing conflicts of any kind)
* Removed `FlinkDeserializationContext` as `SerdeContext` is now passed
through the Jackson built-in `DeserializationContext`. Now `SerdeContext` is
also passed to the serialization context.
* Removed all usages of `ObjectMapper` within the `Deserializer`s, replacing
them with proper usage of `DeserializationContext#readValue`.
## Verifying this change
This change is a trivial rework without additional 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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