OpenAPITools / OpenAPITools/openapi-generator

[BUG][java-helidon-server] exclusiveMinimum is not respected in validation

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Issue: Bug
Dominant language
Java
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Description

Description

The exclusiveMinimum flag on a schema is ignored for the generated code. Using the linked spec, the generated validation code is
validator.validateMin("count", count, 0, true);, however the expected result would be validator.validateMin("count", count, 0, false);

openapi-generator version

7.8.0 gradle plugin

OpenAPI declaration file content or url

bugs.json

Generation Details

Generated via the gradle plugin

openApiGenerate {
    generatorName.set("java-helidon-server")
    inputSpecRootDirectory.set("$rootDir/specs/")
    outputDir.set("$rootDir/src")
    apiPackage.set("my.package.api")
    modelPackage.set("my.package.model")
    invokerPackage.set("my.package.api.services")
    validateSpec.set(true)
    generateApiTests.set(false)
    configOptions.set([
            apiPackage          : "my.package.services",
            modelPackage        : "my.package.model",
            invokerPackage        : "my.package.services",
            dateLibrary         : "java8",
            gradleProject       : "true",
            groupId             : "my.package",
            artifactId          : "example",
            library             : "se",
            helidonVersion      : "$helidonVersion",
            serializationLibrary: "jackson",
            fullProject         : "false",
            useAbstractClass    : "true",
            "x-helidon-groupBy" : "first-path-segment"
    ])
}
Steps to reproduce

Use the java-helidon-server plugin to generate the server implementation

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  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 java-helidon-server generator and the linked bugs.json OpenAPI declaration, then trace how exclusiveMinimum becomes the generated validator.validateMin call. Reproduce generation with the Gradle plugin and verify that the boolean argument reflects the schema's exclusiveMinimum setting.

Written by the indexing model from the issue text.

Assessment

Tech stack
java, openapi
Domain
api, backend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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