title: Struts2 conversion warning
body: <p>I am developing a model based web application on Struts2.2.3. What I mean by model is, database tables are represented as java classes(you know). And models have properties with types such as Integer, Date and so on. When I render these values on page, and when user puts values other than it is original type, it always giving me exceptions. It is not reaching validation function before getting populated.</p>
  
  <p>And it shows following message on page:</p>
  
  <pre><code>Invalid field value for field "estimates[1].count".
  </code></pre>
  
  <p>Also shows following exception on console</p>
  
  <pre><code> WARN OgnlValueStack:60 - Error setting expression 'estimates[1].count' with value '[Ljava.lang.String;@a61ffd'
  </code></pre>
  
  <p>I saw several people had this issue before like this: 
  <a href="http://osdir.com/ml/user-struts.apache.org/2009-12/msg00037.html" rel="nofollow">http://osdir.com/ml/user-struts.apache.org/2009-12/msg00037.html</a></p>
  
  <p>I have my ConversionError interceptor removed from my default stack. And my devMode is off. However, I am still getting these errors. </p>
  
  <p><strong>UPDATE:</strong></p>
  
  <p>I found that error exception can be caught by MyAction-validation.xml and error message can be customized. But OGNL warning still remained. </p>
  
  <p>Thus the question is: </p>
  
  <p>Is there any way not to show this warning on log?</p>