I see that the originating exception is:
Caused by: java.lang.IllegalArgumentException: Argument "null" must
not be empty or only whitespace.
at com.myapp.dto.Dummy(Dummy.java:76)
that is, an exception raised by your code.
What is the code at Dummy.java:76?
On Wed, May 13, 2009 at 7:09 PM, Martin Makundi
<[email protected]> wrote:
>> I think Igor meant for you to post some code.
>
> There's nothing special..
>
> form = new form
>
> form.add(nestedform = new form)
>
> nestedform.add(new textfield(propertymodel).setRequired(true));
>
> It works most of the time, but sometimes I get the exception.
>
> **
> Martin
>
>>
>> cheers,
>> Steve
>>
>>
>>
>> On 13 May 2009, at 17:27, Martin Makundi wrote:
>>
>>> Ok, I was hoping someone has experienced the same stacktrace.
>>>
>>> I will try to reproduce the bug still, maybe I find something.
>>>
>>> **
>>> Martin
>>>
>>> 2009/5/13 Igor Vaynberg <[email protected]>:
>>>>
>>>> hard to say without having something to play against.
>>>>
>>>> -igor
>>>>
>>>> On Wed, May 13, 2009 at 8:19 AM, Martin Makundi
>>>> <[email protected]> wrote:
>>>>>
>>>>> Hi!
>>>>>
>>>>> I have a data object Dummy whose attribute "value" has a setMethod
>>>>> (setValue) that does not allow the given value to be an empty string
>>>>> or null.
>>>>>
>>>>> This model object is attached to a property model new
>>>>> PropertyModel(dummy, "value") and the propertymodel is passed to a
>>>>> TextField component whose "setRequired=true"..
>>>>>
>>>>> Normally, when I access the page, the form works perfectly. It
>>>>> requires the field and does not allow submitting the form without the
>>>>> required value.
>>>>>
>>>>> However, on the log I find following errors and I do not understand
>>>>> how they occur because the field is required. Is it possible that
>>>>> there is a bug in wicket (rc4) processing invisible forms or
>>>>> something? It is difficult to repeat the error because it occurs
>>>>> randomly in production:
>>>>>
>>>>> 2009-05-13 15:31:00,225 2816867 [btpool0-27] ERROR RequestCycle -
>>>>> Error calling method: public void
>>>>> com.myapp.dto.Dummy.setValue(java.lang.String) on object:
>>>>> com.myapp.dto.du...@3140994e
>>>>> org.apache.wicket.WicketRuntimeException: Error calling method: public
>>>>> void com.myapp.dto.Dummy.setValue(java.lang.String) on object:
>>>>> com.myapp.dto.du...@3140994e
>>>>> at
>>>>> org.apache.wicket.util.lang.PropertyResolver$MethodGetAndSet.setValue(PropertyResolver.java:1119)
>>>>> at
>>>>> org.apache.wicket.util.lang.PropertyResolver$ObjectAndGetSetter.setValue(PropertyResolver.java:582)
>>>>> at
>>>>> org.apache.wicket.util.lang.PropertyResolver.setValue(PropertyResolver.java:136)
>>>>> at
>>>>> org.apache.wicket.model.AbstractPropertyModel.setObject(AbstractPropertyModel.java:169)
>>>>> at
>>>>> org.apache.wicket.Component.setDefaultModelObject(Component.java:3061)
>>>>> at
>>>>> org.apache.wicket.markup.html.form.FormComponent.updateModel(FormComponent.java:1141)
>>>>> at
>>>>> org.apache.wicket.markup.html.form.Form$FormModelUpdateVisitor.component(Form.java:224)
>>>>> at
>>>>> org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrderHelper(FormComponent.java:488)
>>>>> at
>>>>> org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrderHelper(FormComponent.java:467)
>>>>> at
>>>>> org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrderHelper(FormComponent.java:467)
>>>>> at
>>>>> org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrderHelper(FormComponent.java:467)
>>>>> at
>>>>> org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrderHelper(FormComponent.java:467)
>>>>> at
>>>>> org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrder(FormComponent.java:439)
>>>>> at
>>>>> org.apache.wicket.markup.html.form.Form.internalUpdateFormComponentModels(Form.java:2022)
>>>>> at org.apache.wicket.markup.html.form.Form.access$300(Form.java:140)
>>>>> at
>>>>> org.apache.wicket.markup.html.form.Form$20.component(Form.java:2007)
>>>>> at
>>>>> org.apache.wicket.markup.html.form.Form$20.component(Form.java:2003)
>>>>> at
>>>>> org.apache.wicket.MarkupContainer.visitChildren(MarkupContainer.java:871)
>>>>> at
>>>>> org.apache.wicket.MarkupContainer.visitChildren(MarkupContainer.java:886)
>>>>> at
>>>>> org.apache.wicket.markup.html.form.Form.updateNestedFormComponentModels(Form.java:2001)
>>>>> at
>>>>> org.apache.wicket.markup.html.form.Form.updateFormComponentModels(Form.java:1991)
>>>>> at org.apache.wicket.markup.html.form.Form.process(Form.java:959)
>>>>> at org.apache.wicket.markup.html.form.Form.process(Form.java:907)
>>>>> at
>>>>> org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:875)
>>>>> at sun.reflect.GeneratedMethodAccessor65.invoke(Unknown Source)
>>>>> at
>>>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>>>> at java.lang.reflect.Method.invoke(Method.java:597)
>>>>> at
>>>>> org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:182)
>>>>> at
>>>>> org.apache.wicket.request.target.component.listener.ListenerInterfaceRequestTarget.processEvents(ListenerInterfaceRequestTarget.java:73)
>>>>> at
>>>>> org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:92)
>>>>> at
>>>>> wicket.quickstart.TakpApplication$2.processEvents(TakpApplication.java:842)
>>>>> at
>>>>> org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1240)
>>>>> at org.apache.wicket.RequestCycle.step(RequestCycle.java:1319)
>>>>> at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1418)
>>>>> at org.apache.wicket.RequestCycle.request(RequestCycle.java:544)
>>>>> at
>>>>> org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:456)
>>>>> at
>>>>> org.apache.wicket.protocol.http.WicketServlet.doPost(WicketServlet.java:160)
>>>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
>>>>> at wicket.quickstart.TakpServlet.service(TakpServlet.java:48)
>>>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
>>>>> at
>>>>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:491)
>>>>> at
>>>>> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:367)
>>>>> at
>>>>> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:185)
>>>>> at
>>>>> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
>>>>> at
>>>>> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:689)
>>>>> at
>>>>> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:391)
>>>>> at
>>>>> org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:146)
>>>>> at
>>>>> org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
>>>>> at
>>>>> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
>>>>> at org.mortbay.jetty.Server.handle(Server.java:285)
>>>>> at
>>>>> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:457)
>>>>> at
>>>>> org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:765)
>>>>> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:627)
>>>>> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:209)
>>>>> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:357)
>>>>> at
>>>>> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:329)
>>>>> at
>>>>> org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:475)
>>>>> Caused by: java.lang.IllegalArgumentException: Argument "null" must
>>>>> not be empty or only whitespace.
>>>>> at com.myapp.dto.Dummy(Dummy.java:76)
>>>>>
>>>>> t. Martin
>>>>>
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>>>>>
>>>>>
>>>>
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>>>>
>>>>
>>>
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>>>
>>
>>
>
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>
--
Daniele Dellafiore
http://blog.ildella.net
http://twitter.com/ildella
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