Generated Spring Controller lacks of @Validated annotation

-The problem:
Query\PathParam arguments aren't validated by Spring.
-Solution:
Add @org.springframework.validation.annotation.Validated annotation along with @Controller
-Temporary hack:

    doLast {
        def generator = new io.swagger.codegen.DefaultGenerator().opts(swaggerConfig.toClientOptInput())
        def generatedFiles = generator.generate()
        println 'Applying HACKFIX: add @Validated on controllers'
        generatedFiles.findAll { it.name.contains('Controller') }
                .each { it.write(it.text.replaceFirst("@Controller", "@Controller\n@org.springframework.validation.annotation.Validated")) }
    }

-Note:
Please remember to add MethodValidationPostProcessor to Spring context

@Configuration
public class AppConfig {
    @Bean
    public MethodValidationPostProcessor methodValidationPostProcessor() {
        MethodValidationPostProcessor methodValidationPostProcessor = new MethodValidationPostProcessor();
        methodValidationPostProcessor.setProxyTargetClass(true);
        return methodValidationPostProcessor;
    }
}

Start by tracing how DefaultGenerator produces Spring controller files and locate the template or generation path that emits @Controller. Confirm how the generated controllers handle Query and PathParam validation, then ensure @Validated is included alongside @Controller and verify the generated output. The issue also notes that consumers need MethodValidationPostProcessor in their Spring context.