[Java] swagger-codegen-maven-plugin 2.3.1 not generate @valid annotations

Description

Im using java/ swagger-codegen-maven-plugin 2.3.1 with the follwoing settings. I see my swagger constraints being generated, but dont see @valid tag being added per https://github.com/swagger-api/swagger-codegen/issues/5498

<execution> <goals> <goal>generate</goal> </goals> <id>serviceability-generate-sources</id> <phase>generate-sources</phase> <configuration> <output>${project.build.directory}</output> <inputSpec>src/main/resources/swagger/api.yaml</inputSpec> <language>jaxrs-cxf</language> <configHelp></configHelp> <configOptions> <sourceFolder>generated</sourceFolder> <dateLibrary>java8</dateLibrary> <apiPackage>com.test.api</apiPackage> <modelPackage>com.test.api.model</modelPackage> <useBeanValidation>true</useBeanValidation> <performBeanValidation>true</performBeanValidation> </configOptions> </configuration> </execution>

Question: How do I trigger generation of @valid code per issues/5498

Swagger-codegen version

io.swagger
swagger-codegen-maven-plugin
2.31

Swagger declaration file content or url

Command line used for generation

Steps to reproduce

Related issues/PRs

Suggest a fix/enhancement

Start with the swagger-codegen-maven-plugin 2.3.1 execution shown in the issue, using src/main/resources/swagger/api.yaml and the jaxrs-cxf language with useBeanValidation and performBeanValidation enabled. Compare the generated sources with the behavior described in issue 5498; done means the generated Java code includes the expected @Valid annotations.