You are using Palette component from Tapestry. It has a parameter called
"selected" that must be provided with non-null value. In your case it is
bound to your "stores" field. You must ensure that "stores" is always
non-null. Note that, according to the documentation, before T5.4 "selected"
was allowed to be null, so if your application was working before with
Tapestry 5.3 (or older), you need to change your code appropriately.
Best regards,
Cezary
On Fri, May 27, 2016 at 7:55 PM, sheikh hossain <shossa...@gmail.com> wrote:
> Not sure what I am doing wrong.
> I am getting this exception from .tml file
>
> Parameter 'selected' of component zone/Edit:stores is bound to null. This
> parameter is not allowed to be null.
>
> In my .tml file I have
>
>
> <style>
> DIV.t-palette SELECT { width: 300px; }
> </style>
>
>
> - - - - -
>
> - - - - -
>
> <t:palette t:id="stores" selected="stores" encoder="storeEncoder"
> model="storesModel"
>
> t:deselect="context:images/arrow_left_new.png" validate="required"
>
> t:select="context:images/arrow_right_new.png" >
>
>
> In my java class I have:
>
> @Property
> private List<Store> stores; // Store is a simple pojo
>
> The class doesn't have any 'selected' variable but does have some
> 'onSelectedXXXX' method.
>
>
> I have checked other posts related to the same issue but those are not
> exactly the same problem.
> I will appreciate any suggestion.
>
> Thanks.
>
