title: What is the difference between JAX-RS and JAX-WS?
body: <p>After reading a few articles about JAX-RS and JAX-WS, I had a few questions that I want to confirm?</p>
  
  <ol>
  <li>Can JAX-RS do Asynchronous Request like JAX-WS?</li>
  <li>Can JAX-RS access a web service that is not running on the Java platform, and vice versa?</li>
  <li>What does it mean by "REST is particularly useful for limited-profile devices, such as PDAs and mobile phones"?</li>
  <li>What does it mean by "JAX-RS do not require XML messages or WSDL service–API definitions?</li>
  </ol>