[OS-webwork] displaying invalid data entered for non String values

[Francisco Hernandez]

not too sure how to handle this cleanly but I want have a textfield 
where with a property of java.util.Date so users can input a date like 
03/17/1980
and that works fine, but if they enter 03/1x7/1980 it should present 
them an error message but also redisplay 03/1x7/1980 in the textfield so 
they
can just remove the x and happily proceed, but since theDate is null its 
not redisplaying the previously entered values

if my jsp im using:
<ww:textfield label="'Enter Date'" name="'theDate'" value="theDate" />
and to validate:
public void validate() {
       if (theDate == null) {
           addFieldError("theDate", "Please input correct Date! you 
entered: " +
                   
((String[])ActionContext.getContext().getParameters().get("theDate"))[0]);
       }
   }

I could add another property like theDateString and do some more logic 
in validate() but that smells bad.. anyone have any ideas?

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