title: javax.el.ELException: The identifier [return] is not a valid Java identifier
body: <p>I have a page url, which looks like:</p>
  
  <p><a href="http://mydomain.com/nodes/32/article/new?return=view" rel="noreferrer">http://mydomain.com/nodes/32/article/new?return=view</a></p>
  
  <p>After installing tomcat 7, when trying to access it I got this exception:</p>
  
  <pre><code>/nodes/${param.id}/article/new?return=${param.return}
  contains invalid expression(s): javax.el.ELException: The identifier [return] is not a valid Java identifier as required by section 1.19 of the EL specification (Identifier ::= Java language identifier). This check can be disabled by setting the system property org.apache.el.parser.SKIP_IDENTIFIER_CHECK to true.
  </code></pre>
  
  <p>Any ideas why I get that?  To fix it should I change this property in tomcat only?</p>