It maybe 4 years overdue, but thanks to issue 7 on swagger-jaxb I have finally released swagger-jaxb 1.5 into Maven Central. You can now all use it in your favourite build tool that supports m2 repositories, or build it yourself from the repository. ( That is, if you use Java 8 )
swagger-jaxb is a jaxb plugin that adds @ApiModel and @ApiModelProperty to your generated classes. You could use it with the jaxb2-maven-plugin, see the repo for information.
You may also report issues on the github repo