[BUG] [JAVA] [restclient] combining properties and additionalProperties generates broken Model class

[roborobo2]

same as fixed issues:
#17361
@JoaoBrlt , we have same problem with java generator and restclient library. Can you fix it please also for restclient? thank you.

Combining required properties with additionalProperties: true generates a Model class that extends HashMap. On deserialization, the given Properties are not filled, instead all properties (required and additional) are part of the Hashmap. According to FasterXML/jackson-databind#3173 this is expected behavior for Jackson so the generated Model is wrong.
This was fixed for the spring generator in #11572 but its still happening in the java generator.

openapi-generator version
7.11.0/7.12.0

[drej1]

+1

[JoaoBrlt]

Hi @roborobo2! 👋
I've just created the pull request #20947 to fix the issue for the restclient library.
For others passing by: if you notice the same issue for another library, checkout the previous pull requests (#19706, #19711, #19713) and don't hesitate to contribute to the project.
It's a fairly simple fix, so it's well suited for a first pull request if you can contribute to the project. 😉

[drej1]

Hi @JoaoBrlt when will this be released please? Thanks