OpenAPITools / OpenAPITools/openapi-generator
[BUG] Generation with `kotlinx_serialization` generates unnecessary `@Serializable` on interfaces and double `@Serializable@Serializable` on classes
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Issue: Bug
- Dominant language
- Java
- Stars
- 26.8k
- Forks
- 7.7k
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Description
Kotlin Client
openapi generator version 7.6.0
Description
Generated interfaces have @Serializable and classes @Serializable@Serializable annotations which requires manual correction.
openapi-generator version
7.6.0
Steps to reproduce
My gradle task uses this to generate:
generatorName.set("kotlin")
library.set("multiplatform")
inputSpec.set("path/to/my/openapi-spec.json")
outputDir.set("$projectDir/build")
....
configOptions.set(
mapOf(
"serializationLibrary" to "kotlinx_serialization",
"dateLibrary" to "kotlinx-datetime",
"idea" to "true",
....
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the Kotlin client generation with the multiplatform library and kotlinx_serialization configuration shown in the issue, then inspect the generated interfaces and classes. Done means interfaces no longer receive an unnecessary @Serializable annotation and classes do not contain the annotation twice.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- kotlin
- Domain
- tooling
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100