title: The method print(boolean) in the type JspWriter is not applicable for the arguments (void)
body: <p>Hi I am facing a error named "The method print(boolean) in the type JspWriter is not applicable for the arguments (void) " with my JSP code in GAE.</p>
  
  <p>In line :<code>&lt;%= request.getSession(true).setAttribute("state","firstNumber") %&gt;</code></p>
  
  <p>Here is the code:</p>
  
  <p>` </p>
  
  <pre><code>  &lt;c:when test='${param.event == "NewCall"}'&gt;
        &lt;% 
           Response resp1=new Response();
           CollectDtmf cd= new CollectDtmf(); 
           cd.addPlayText("Welcome. Please enter the first number. Terminate with #");           
           resp1.addCollectDtmf(cd);
        %&gt;
        &lt;%= request.getSession(true).setAttribute("state","firstNumber") %&gt; 
        &lt;% out.println(resp1.getXML()); %&gt;
    &lt;/c:when&gt;
  </code></pre>
  
  <p>`</p>
  
  <p>Please tell what am I doing wrong here. Thanks</p>