public class Parameters {

    private final String param1;
    private final String param2;
    private final String param3;

    public Parameters(String param1, String param2, String param3) {
        super();
        this.param1 = param1;
        this.param2 = param2;
        this.param3 = param3;
    }

    public String getParam1() {
        return param1;
    }

    public String getParam2() {
        return param2;
    }

    public String getParam3() {
        return param3;
    }
}

@POST
    @Path("/add/params")
    @ApiOperation(value = "Adding params")
public Response addParams(@ApiParam(required = true)Parameters params){

}