I was getting that exception when running the ajax examples.
On 2/15/06, Ari Suutari <[EMAIL PROTECTED]> wrote:
> Hi,
>
> I'm afraid that the fix doesn't work. The loop at Markup constructor
>
> this.markup = new ArrayList();
> for (int i=0; i < markupElements.size(); i++)
> {
> addMarkupElement((MarkupElement)markupElements.get(i));
> }
>
> This ends up calling wrong addMarkupElement (ie. the one which takes
> MarkupElement as
> parameter). The other one accepts ComponentTag as parameter. The problem is
> that the called
> method does not create the componentMap, only the one with ComponentTag
> parameter does.
>
> Ari S.
>
> ----- Original Message -----
> From: "Juergen Donnerstag" <[EMAIL PROTECTED]>
> To: <[email protected]>
> Sent: Wednesday, February 15, 2006 1:13 PM
> Subject: Re: [Wicket-develop] NullpointerException in
> Markup.findComponentIndex
>
>
> > fixed
> >
> > On 2/15/06, Juergen Donnerstag <[EMAIL PROTECTED]> wrote:
> >> I think Ari is right. Igor mentioned that problem yesterday as well
> >> and I couldnt figure out what the problem was. But what Ari says makes
> >> perfect sense.
> >>
> >> Juergen
> >>
> >> On 2/15/06, Johan Compagner <[EMAIL PROTECTED]> wrote:
> >> > i can add a null check there but i don't know if that really fixes the
> >> > root
> >> > of the problem
> >> > (why that map is not filled)
> >> >
> >> > would be nice to have a small example demonstrating this.
> >> >
> >> >
> >> > johan
> >> >
> >> >
> >> > On 2/15/06, Ari Suutari <[EMAIL PROTECTED]> wrote:
> >> > > Hi,
> >> > >
> >> > > Yes, a markup like this
> >> > >
> >> > > <span wicket:id="linjat">
> >> > > <tr>
> >> > > <td>
> >> > > <span wicket:id="linja1"></span>
> >> > > </td>
> >> > > </tr>
> >> > > </span>
> >> > >
> >> > > when put into a panel, which uses <wicket:extend> doesn't work
> >> > > when "linjat" is rendered via AjaxRequestTarget. "linjat" is e
> >> > WebMarkupContainer
> >> > > and "linja1" is a label.
> >> > >
> >> > > Ari S.
> >> > >
> >> > > ----- Original Message -----
> >> > > From: "Johan Compagner" <[EMAIL PROTECTED]>
> >> > > To: < [email protected]>
> >> > > Sent: Wednesday, February 15, 2006 10:55 AM
> >> > > Subject: Re: [Wicket-develop] NullpointerException in
> >> > Markup.findComponentIndex
> >> > >
> >> > >
> >> > > thats strange. Does that markup doesn't have any wicket components?
> >> > >
> >> > > johan
> >> > >
> >> > >
> >> > > On 2/15/06, Ari Suutari <[EMAIL PROTECTED]> wrote:
> >> > > >
> >> > > > Hi,
> >> > > >
> >> > > > I have been trying to track what causes following exception in some
> >> > > > of
> >> > our
> >> > > > wicket pages
> >> > > > using ajax stuff:
> >> > > >
> >> > > > java.lang.NullPointerException
> >> > > > at
> >> > wicket.markup.Markup.findComponentIndex(Markup.java:271)
> >> > > > at
> >> > wicket.markup.MarkupStream.findComponentIndex(MarkupStream.java
> >> > :444)
> >> > > > at
> >> > wicket.Component.initializeMarkupStream(Component.java:2757)
> >> > > > at wicket.Component.doRender(Component.java:697)
> >> > > > at
> >> > wicket.ajax.AjaxRequestTarget.respondComponent(AjaxRequestTarget.java
> >> > > > :187)
> >> > > > at
> >> > wicket.ajax.AjaxRequestTarget.respond(AjaxRequestTarget.java:135)
> >> > > >
> >> > > > (I'm running against today's cvs version)
> >> > > >
> >> > > > It looks like the componentMap member of Markup instance is null.
> >> > > > Now I'm just guessing, but could it be that when Markup is
> >> > > > constructed
> >> > > > via the "copy" constructor:
> >> > > >
> >> > > > Markup(final Markup markup, final List markupElements)
> >> > > >
> >> > > > Then the componentMap is not initialized ? At least this constructor
> >> > > > is called on pages that do not work.
> >> > > >
> >> > > > Ari S.
> >> > > >
> >> > > >
> >> > > >
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> >> > >
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