[Kotlin][Spring] fix flag appendRequestToHandler with delegatePattern

[pstorch]

fix #18555 kotlin-spring generator flag appendRequestToHandler generates broken code when used with flag delegatePattern

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[wing328]

i set this option to false but i got compilation error in samples/server/petstore/kotlin-springboot-delegate

does it work for you locally if you set the option appendRequestToHandler to false?

[pstorch]

Looks like the build.gradle.kts is broken.
Do you get this error?

    ~/git/openapi-generator/samples/server/petstore/kotlin-springboot-delegate    issue_18555 +4 !1  gradle build                                                                                                                                                                                        ✔ 

> Task :compileKotlin FAILED
e: /home/peter/git/openapi-generator/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/PetApiController.kt: (7, 19): Unresolved reference: Generated
e: /home/peter/git/openapi-generator/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/PetApiDelegate.kt: (18, 19): Unresolved reference: Generated
e: /home/peter/git/openapi-generator/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/StoreApiController.kt: (7, 19): Unresolved reference: Generated
e: /home/peter/git/openapi-generator/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/StoreApiDelegate.kt: (17, 19): Unresolved reference: Generated
e: /home/peter/git/openapi-generator/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/UserApiController.kt: (7, 19): Unresolved reference: Generated
e: /home/peter/git/openapi-generator/samples/server/petstore/kotlin-springboot-delegate/src/main/kotlin/org/openapitools/api/UserApiDelegate.kt: (17, 19): Unresolved reference: Generated

FAILURE: Build failed with an exception.

I get it regardless of the appendRequestToHandler setting. It looks like the mustache template for the spring-boot < 3 is broken. Here https://github.com/OpenAPITools/openapi-generator/blob/master/modules/openapi-generator/src/main/resources/kotlin-spring/libraries/spring-boot/buildGradleKts.mustache#L60 and the next line it needs javax instead of jakarta.

These two lines should be:

    compile("javax.validation:validation-api")
    compile("javax.annotation:javax.annotation-api:1.3.2")

I can create a PR for this.

[pstorch]

But why didn't the workflows fail?