Is there something tricky about instantiating a DynaValidatorForm ?

[Kilmer, Erich]

Hello,
I am trying to Junit test my Struts code. Not sure how many people have
tried to do this. If there is a more appropriate forum to send this to
please let me know.
Here is my test code. When it gets to: dynaValidatorForm.set("areaId",
"-1"); it crashes.
I never tried to instantiate a DynaValidatorForm before (I always just cast
ActionForm in the action method to a DynaValidatorForm).
Is there something tricky about instantiating a DynaValidatorForm ?

   public void testSaveEdit()
   {
      try
      {
         appbean.login("admin", "project");
         addRequestParameter("method","Save");
         addRequestParameter("areaId","-1");
         setRequestPathInfo("/saveArea.do");
         DynaValidatorForm dynaValidatorForm = new DynaValidatorForm();
         dynaValidatorForm.set("areaId", "-1");
         dynaValidatorForm.set("description", "area1");
         dynaValidatorForm.set("projectCoordinatorContactName", "new name
1");
         dynaValidatorForm.set("projectCoordinatorContactPhoneNumber", "new
number 1");
         dynaValidatorForm.set("maintenanceManagerContactName", "new name
2");
         dynaValidatorForm.set("maintenanceManagerContactPhoneNumber", "new
number 2");
         setActionForm(dynaValidatorForm);
         actionPerform();
         verifyForward("success");
         verifyNoActionErrors();
         verifyActionErrors(new String[]{"message.saved"});
         appbean.logout();

      }
      catch(Exception e)
      {
          fail("Unexpected Exception - " + e.getMessage());
      }
   }