OpenAPITools / OpenAPITools/openapi-generator

[BUG][Java-Native] Async Generates Unecessary ApiExceptions

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Issue: Bug
Dominant language
Java
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Description

Description

When producing a java with Native client with library native and asyncNative = true, the generator generates API definitions with throws ApiException. This exception is not needed as all exceptions are wrapped with CompletableFuture.failedFuture(new ApiException(e)).

openapi-generator version

6.5.0

Generation Details
configOptions = [
                   hideGenerationTimestamp    : "true",
                   library                    : "native",
                   skipValidateSpec           : "true",
                   serializationLibrary       : "jackson",
                   useJakartaEe               : "true",
                   openApiNullable            : "false",
                   asyncNative                : "true",
                   legacyDiscriminatorBehavior: "false",
                   ignoreAnyOfInEnum          : "true"
]
Suggest a fix

api.mustache.zip

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the attached api.mustache template and reproduce Java generation using library=native and asyncNative=true from the listed configuration. Check where generated API definitions add throws ApiException alongside CompletableFuture handling. Done means async native APIs no longer declare the unnecessary exception while retaining the described failure wrapping.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
tooling
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
48/100

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