The core api changes around ProviderManager and FilterChainProxy I think is
something that won’t be too crazy to work around. I think the best bet
there will be to have the geoserver counter parts
(GeoServerSecurityManager, GeoServerFilterChainProxy) wrap the spring stuff
rather than extend it. That way it can be recreated as needed via
constructor rather than setters after the fact. In an ideal world nothing
around thsoe classes would have to change, but that is probalby a bit too
optimistic :)

As for the CAS stuff you’re guess is as good as mine. I can confirm
Christians findings that the api has changed significantly and from what I
can tell without much guidance as to what the transition is from the old
api to the new.  Could potentially be looking at a re-implementation there
but knowing next to nothing about CAS I delegate to Christian on that.



On Wed, Mar 2, 2016 at 12:16 AM Christian Mueller <
christian.muel...@os-solutions.at> wrote:

> Hi all
>
> The Spring security API changed since 4.x.  GeoServer is relying on
> getters and setters and this methods are gone. Since 4.x, the instance
> variables are set using a constructor. Not easy to change.
>
> Additionally,  the CAS java client also changed the public API, this is
> the second problem because the CAS jar is a dependency of Spring Security.
>
> Will have a look at the problem during the weekend.
>
> Do we have a branch where I can start investigating ?
>
> Cheers
> Christian
>
>
>
>
>
>
>
>
>
>
> On Wed, Mar 2, 2016 at 4:29 AM, Andrea Aime <andrea.a...@geo-solutions.it>
> wrote:
>
>> Hi Jody,
>> as said in the meeting, I'm supportive of a delay long enough to switch
>> everything to Spring 4 and make it solid (2-3 months)
>>
>> Cheers
>> Andrea
>>
>>
>> On Wed, Mar 2, 2016 at 2:49 AM, Jody Garnett <jody.garn...@gmail.com>
>> wrote:
>>
>>> Okay, I respect both options making this a tough decision. I wish we
>>> could hear back from Christian about the security-cas release, but the same
>>> spring4 migration needed by both plans.
>>>
>>> I would like to go ahead with the release delay (do the spring 4 upgrade
>>> now), avoids an awkward 50% solution that we would need to support.
>>>
>>>
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>>>
>>
>>
>> --
>> ==
>> GeoServer Professional Services from the experts! Visit
>> http://goo.gl/it488V for more information.
>> ==
>>
>> Ing. Andrea Aime
>> @geowolf
>> Technical Lead
>>
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>> Via di Montramito 3/A
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>
>
> --
> DI Christian Mueller MSc (GIS), MSc (IT-Security)
> OSS Open Source Solutions GmbH
>
>
> ------------------------------------------------------------------------------
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