Wicket Internalization - Exceptions

[sakthi vel]

Hello,

I want to display a value of label using the concept of
Internationalization.
Actually there are number of property file for different languages.
When I try to add the dynamic field to property file, I am getting an
exception

*WicketMessage: No get method defined for class: class
org.apache.wicket.markup.html.form.Form expression: personName*


Content of files are

*Property files:*
status: Hello ${personName}


*Html file:*
<span wicket:id = "hello"></span>

Model file:

public class NameModel
{
   private String personName;
   public String getPersonName()
   {
    return personName;
   }

   public void setPersonName(String personName)
   {
    this.personName;
   }
}


*Java file:*

NameModel nameModel = new NameModel();
nameModel.setPersonName("Test");

add(new Label("lblProperty", new StringResourceModel("hello", this, new
PropertyModel(nameModel, "personName"))));


Could anyone explain what is the reason for receiving this exception and
steps to overcome this.