You found a regression :)
It is a bit concerning you have a Style_UUID which does not exist. Styles
are optional in a LayerGroup, indicating use of a default style. I presume
the WMSLayers do not provide a style causing the problem
I think the way to fix this would be to detect when a WMSLayer is used and
not look for a style in that case.
--
Jody Garnett
On 26 July 2017 at 01:54, Andreas Watermeyer <
[email protected]> wrote:
> Hi all,
>
> we have the following problem (see below). I can try to provide a pull
> request, but I need some background information:
>
> Situation: A group layer consisting of two *cascaded* WMS layers, from
> an external WMS server.
>
> Problem: If a WMS GetCapabilities request is received a NPE occurs and
> the Capabilities document is incomplete.
>
> Reason: GS tries to determine the scale denominators for the group
> layer. So it tries to analyze the Styles taking part. First: Style
> defined on the group layer (=null). Second: Default Style defined on
> the nested WMS (=null). The null is forwarded to the analysis -> NPE.
>
> Question: What is the expected fix?
>
> Just fix the NPE/avoid forwarding the "null"? That works, of course. I
> am asking because during runtime there are proxy objects available as
> Styles, having some Style-UUID which is apparently not existing. So
> the proxies resolve to null. Should this proxy resolve to some empty
> default Style instead? In this case the fix would be different, or it
> might be a problem of an inconsistent data directory only. Additonally
> I am quite sure the problem appeared after upgrading from GS 2.10.0 to
> 2.11.1
>
> Any help is welcome!
>
> Best regards,
> Andreas
>
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