title: Does ExpressionLanguage (EL) allow to call a method with a NULL argument?
body: <p>I use Tomcat7 with JSF2. I use method invocations like</p>
  
  <pre><code> action="#{bean.method(22)}"
  </code></pre>
  
  <p>or </p>
  
  <pre><code> action="#{bean.method(var)}"
  </code></pre>
  
  <p>where <code>var</code> is an EL variable.</p>
  
  <p>However, if <code>var</code> is <code>null</code>, or i try to call <code>#{bean.method(null)</code> i get an NPE and the method is not called.</p>
  
  <p>Is there any way to pass a <code>null</code> argument to a method in EL?
  Is there a literal for <code>null</code> in EL?</p>
  
  <p>Thanks</p>