MyServlet.php

<?php

namespace Vendor\Package\Servlets\MyServlet;


use ...;

/**
 * @Route(name="stylecardsearch", urlPattern={"/foo/bar.do", "/foo/bar.do*"}, initParams={})
 */
class MyServlet extends HttpServlet {

	/**
	 * @param HttpServletRequestInterface $servletRequest
	 * @param HttpServletResponseInterface $servletResponse
	 * @return mixed
	 * @throws \Exception
	 * @ResponseFormat(groups="myGroup1, myGroup2")
	 */
	public function doGet(HttpServletRequestInterface $servletRequest, HttpServletResponseInterface $servletResponse) {

ResponseAspect.php

<?php

/**
 * @Aspect
 */
class ResponseAspect {
	/**
	 * @Pointcut("call(\Vendor\Package\Servlets\*\*Servlet->do*())")
	 */
	public function allServletDoMethods() {
	}

	/**
	 * @Around("pointcut(allServletDoMethods())")
	 * @param MethodInvocationInterface $methodInvocation
	 * @return mixed
	 */
	public function formatHandlingAdvice(MethodInvocationInterface $methodInvocation) {
      $methodName = $methodInvocation->getName();
			$servletClassReflection = new ReflectionClass($methodInvocation->getStructureName(), [], [ResponseFormat::ANNOTATION => ResponseFormat::__getClass()]);
			$reflectionMethod = $servletClassReflection->getMethod($methodName);
			$reflectionAnnotation = $reflectionMethod->getAnnotation('ResponseFormat');
			$responseGroups = $reflectionAnnotation->newInstance()->getGroups();
	}

ResponseFormat.php

<?php

namespace Vendor\Package\Annotations;

use AppserverIo\Lang\Reflection\ReflectionClass;
use AppserverIo\Lang\Reflection\ReflectionAnnotation;

/**
 * Annotation implementation representing a @ResponseFormat annotation on a property.
 */
class ResponseFormat extends ReflectionAnnotation {

	/**
	 * The annotation for method, a bean has to be injected.
	 *
	 * @var string
	 */
	const ANNOTATION = 'ResponseFormat';

	/**
	 * This method returns the class name as
	 * a string.
	 *
	 * @return string
	 */
	public static function __getClass()
	{
		return __CLASS__;
	}

	/**
	 * Returns the groups of the return format.
	 *
	 * @return array|null
	 */
	public function getGroups() {
		$groups = $this->getValue('groups');
		if (!is_null($groups)) {
			$groups = array_map('trim',explode(',', $groups));
		}
		return $groups;
	}
}