title: JSF action method with variable parameter
body: <p>How do I call method with variable parameters in JSF?</p>
  
  <p>I tried something like this:</p>
  
  <pre><code>&lt;h:commandButton value="Send" action="#{myBean.checkPIN(someOtherBean.PIN)}" /&gt;
  </code></pre>
  
  <p>However, this doesn't work.</p>