You have the javadocs jar in your classpath.  It shouldn't be.  That
should fix the error page so that you can see your error (which should
also be visible in the logs anyway).

--
Jeremy Thomerson
http://www.wickettraining.com




On Tue, Apr 28, 2009 at 8:53 PM, Ryan Norris <ryannor...@gmail.com> wrote:
> I've been struggling for a while now fighting with
> AjaxFormComponentUpdatingBehavior and changing the value of a label
> within form when a certain javascript precondition is met.
>
> Code below.
>
>     public final class RegistrationForm extends Form<Registration> {
>         private static final long serialVersionUID = 1L;
>
>         private Registration _registration = new Registration();
>         private CityState _cityState = new CityState();
>
>         public RegistrationForm(String id) {
>             super(id);
>
>             add(new TextField<String>("emailAddress", new
> PropertyModel<String>(_registration, "emailAddress")));
>             add(new PasswordTextField("password", new
> PropertyModel<String>(_registration, "password")));
>             add(new TextField<String>("firstName", new
> PropertyModel<String>(_registration, "firstName")));
>             add(new TextField<String>("lastName", new
> PropertyModel<String>(_registration, "lastName")));
>             add(new TextField<String>("address1", new
> PropertyModel<String>(_registration, "address1")));
>             add(new TextField<String>("address2", new
> PropertyModel<String>(_registration, "address2")));
>             add(new TextField<String>("establishmentName", new
> PropertyModel<String>(_registration, "establishmentName")));
>
>             final Label cityStateLabel = new Label("cityState", new
> PropertyModel<String>(_cityState, "city"));
>             cityStateLabel.setOutputMarkupId(true);
>
>             final TextField<String> zipCodeField = new
> TextField<String>("zip", new PropertyModel<String>(_registration,
> "postalCode"));
>
>             zipCodeField.add(new AjaxFormComponentUpdatingBehavior("onKeyUp") 
> {
>                 private static final long serialVersionUID = 1L;
>
>                 @Override
>                 protected CharSequence getPreconditionScript() {
>                     return "return $(\"input[name='zip']\").val().length == 
> 5;";
>                 }
>
>                 @Override
>                 protected void onUpdate(AjaxRequestTarget target) {
>                     if(target != null) {
>                         _log.info(String.format("Looking up postal
> code: %1$s", _registration.getPostalCode()));
>
>                         PostalCode pc =
> _postalCodeManager.getLocaleDataForCode(_registration.getPostalCode());
>
>                         _cityState.setCity(pc.getCity());
>                         _cityState.setState(pc.getState());
>
>                         target.addComponent(cityStateLabel);
>                     }
>                 }
>             });
>
>             add(zipCodeField);
>             add(cityStateLabel);
>         }
>
>         @Override
>         protected void onSubmit() {
>             try {
>
> _accountManager.createAccount(_registration.getEmailAddress(),
> _registration.getPassword());
>             } catch (DuplicateEmailAddressException e) {
>                 // TODO Auto-generated catch block
>                 e.printStackTrace();
>             }
>         }
>     }
>
> The general gist is to display the city for a given input of 5
> characters.  The error I'm getting is completely unrelated...
>
> exception
>
> org.apache.wicket.WicketRuntimeException: Internal Error: Could not
> render error page class
> org.apache.wicket.markup.html.pages.InternalErrorPage
>        
> org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:174)
>        org.apache.wicket.RequestCycle.step(RequestCycle.java:1321)
>        org.apache.wicket.RequestCycle.steps(RequestCycle.java:1370)
>        org.apache.wicket.RequestCycle.request(RequestCycle.java:501)
>        
> org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:455)
>        
> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:288)
>
> root cause
>
> org.apache.wicket.markup.MarkupException: Tag '<DT>' (line 101, column
> 1) has a mismatched close tag at '</DL>' (line 102, column 1)
> [markup = 
> jar:file:/C:/Documents%20and%20Settings/rnorris/workspace/.metadata/.plugins/org.eclipse.wst.server.core/tmp0/wtpwebapps/web/WEB-INF/lib/wicket-1.4-rc2-javadoc.jar!/org/apache/wicket/markup/html/pages/ExceptionErrorPage.html
> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
> "http://www.w3.org/TR/html4/loose.dtd";>
>
>
> <!--NewPage-->
>
> So, aside from the exception being pretty useless - debugging things
> gets me pretty deep in the weeds.  Before I go through the trouble of
> filing a JIRA ticket, can anyone tell me:
>
> 1.  Is what I'm doing a covered use case (update a label in a form as
> a result of a AjaxFormComponentUpdatingBehavior event)?
> 2.  Is my approach expected to work?  From the scattered documentation
> I've found, this looks completely feasible.
> 3.  Are there any known issues with the rendering and handling of
> Errors in 1.4-rc2?  This isn't the first time I've encountered some
> really difficult to debug problems, but the fact that this is in an
> AJAX scenario makes this really painful.
>
> Thanks.
>
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