Hi Andrea,

I think I've figured it out: the error not the solution :)

When I check if the styles exists in GeoServer using
http://localhost:8080/geoserver/rest/styles (I've used the default
data_dir/styles location) they don't appear but they are showing in the
Geoserver Admin Page. The files do exist (XML and SLD) in the styles folder
so I presume something has got disconnected between the admin page and the
server and this is causing the errors and preventing the WMS layers from
displaying.

So the question is, is there any way of clearing or re-adding these SLD
files into the server? Right now, I cannot use these layers or styles so
effectively GeoServer is broken and I don't want to re-install GS unless
it's a last resort...I was thinking I could use CURL to load the SLD files
back into geoserver - then restart and see if the admin webpage problem
goes away..?

Thoughts? Crazy or logical :)

Ben

On Wed, Apr 8, 2015 at 10:15 AM, Ben Crane <[email protected]> wrote:

> Hi Andrea,
>
> Sure, this is what I get from the UI - I've attached them as text files to
> make it a little more readable.
>
> The publishing_gs.txt is the error I get when I click on a Layer ->
> Publishing
> The styles_gi.txt is the error I get when I go to Styles and try to select
> an existing (custom) style
>
> Ben
>
> On Wed, Apr 8, 2015 at 10:00 AM, Andrea Aime <[email protected]
> > wrote:
>
>> On Wed, Apr 8, 2015 at 10:51 AM, Ben Crane <[email protected]> wrote:
>>
>>> Hey all,
>>>
>>> I've run into a problem all of a sudden. When I try to look at a style I
>>> get the following error:
>>> org.apache.wicket.WicketRuntimeException: Can't instantiate page using
>>> constructor public
>>> org.geoserver.wms.web.data.StyleEditPage(org.apache.wicket.PageParameters)
>>> and argument name = "[MyStyle]"
>>>
>>> When I go to a Layer -> Publishing I get the following:
>>>
>>> org.apache.wicket.WicketRuntimeException: Exception in rendering
>>> component: [MarkupContainer [Component id = defaultStyle]]
>>>
>>> I've made no changes to the server (other than restarting it) so not
>>> sure how this has come about. I'm guessing it's about styles but not sure
>>> what is wrong?
>>>
>>> Has anyone had this issue before?
>>>
>>
>> Does not ring a bell... could you share the full track traces with the
>> same error messages, they are found in the logs (which you can also access
>> from the UI).
>>
>> Cheers
>> Andrea
>>
>> --
>> ==
>> GeoServer Professional Services from the experts! Visit
>> http://goo.gl/NWWaa2 for more information.
>> ==
>>
>> Ing. Andrea Aime
>> @geowolf
>> Technical Lead
>>
>> GeoSolutions S.A.S.
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>> Italy
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