title: How can I convert an Exchange property to uppercase in 'simple'?
body: <p>How can I convert a property on an Apache Camel <em>Exchange</em> to uppercase, in <a href="http://camel.apache.org/simple.html" rel="nofollow">Apache Camel</a> expression language?</p>
  
  <p>e.g.</p>
  
  <pre><code>.when(simple("${property.countryCode.toUpperCase} regex 'NO?'"))
  </code></pre>
  
  <p>But I am getting:</p>
  
  <pre><code>org.apache.camel.language.bean.RuntimeBeanExpressionException:
  Failed to invoke method: .toUpperCase on null
  </code></pre>
  
  <p>I have verified that my property does in fact exist via <code>.log("${property.countryCode}")</code>.</p>
  
  <p>This shouldn't be so hard, to get <code>toUpperCase</code> in Apache Simple (but it is).</p>
  
  <p>I don't want to have to do <code>toUpperCase</code> in Java, or Groovy, or whatever - there must be an easier way</p>