mapping from python to java and back

i am trying to generate clients for python and java in a way that python can serialize a model class (to Kafka) and loading it into Java Spring Boot application on the other end.

i have the python side generating pydantic-based models, which are great for serializtion, but on other end i cannot load them because the java generator generate model classes with camelCase field names, where the python side dumps them to json with snake_case field names.

my focus so far has been to try and get jackson to generate json mapping that would allow loading snake_case json into a model, but no success so far. i know pydantic supports serialization_alias which could be used to serialize to another name, but have had no success with this either.

anyone has any idea or experience with such a conversion?

No repository file or test is named. Start by reproducing the generated Python Pydantic model and Java Spring Boot model at the Kafka JSON boundary, then inspect the generator and serialization settings involved in their field naming. Done means the Python-generated JSON loads into the Java model and the naming behavior is documented or covered by a reproducible test.