Replace usages of getParameterTypes().length with getParameterCount() (REST)

wildfly-jaxrs  (1 usage found)
            jaxrs/src/main/java/org/jboss/as/jaxrs  (1 usage found)
                JaxrsDeploymentDefinition.java  (1 usage found)
                    formatMethod(ResourceMethodInvoker, String, String, String)  (1 usage found)
                        125 if (resource.getMethod().getParameterTypes().length > 0) {