compatibility problem with emf

Mail thread from geotools-devel:

Am 10.02.2011 18:51, schrieb Justin Deoliveira:
> Actually now that trunk is free the EMF upgrade is my first geotools
> priority when i get a bit of free time. Mostly because i want to
> evaluate the performance improvements and because i think it might help
> with an issue Ben is currently having,.
>
> Getting gt to compile against the latest emf was not too hard, a few
> trivial compilation errors here and there due to the use of generics.
> However I did no testing beyond that.
>
> Ben might have a mandate to help on the EMF upgrade. Ben?
>
> On Thu, Feb 10, 2011 at 9:09 AM, Andrea Aime
> <andrea.aime@geo-solutions.it <andrea.aime@geo-solutions.it>> wrote:
>
> On Thu, Feb 10, 2011 at 4:57 PM, Matthias Lendholt
> <matthias.lendholt@gfz-potsdam.de
> <matthias.lendholt@gfz-potsdam.de>> wrote:
> > Hopefully. First I have to setup maven/eclipse/svn for a fresh
> geotools
> > workspace to access trunk. Or have you switched to git?
>
> GeoTools is still on svn.
> The thing is, will Justin have time to play with an EMF upgrade? It's
> not something we can
> take for granted.
> Wondering if someone else could do it with Justin providing
> information about his latest
> attempt at it
>

Am 09.02.2011 17:22, schrieb Matthias Lendholt:
> Dear udig-devel, geotools-devel,
>
> (Sorry for crossposting but this affects both uDig and Geotools)
>
> Recently we upgraded our project from eclipse 3.5, udig-sdk_1.2RC1
> (geotools 2.6.2) to eclipse 3.6, udig_sdk_1.2.1 (with geotools 2.7-RC1).
>
>
> For the integretion / wrapping of WPS processes the application uses
> gt-process (org.geotools.process) and gt-wps (org.geotools.data.wps).
>
> Since the upgrade java.lang.InstantiationError are thrown whenever the
> application tries to use org.geotools.data.wps.WPSFactory to access a
> WPS. Stacktrace below.
>
> The exception is thrown in
> jar: net.opengis.wps-2.7-RC1.jar
> file: net.opengis.wps10.impl.UOMsTypeImpl
> row 81: uOM = new EcoreEList(Unit.class, this );
>
>
> EcoreEList is in org.eclipse.emf.ecore_2.6.1.v20100914-1218.jar
>
> It's not easy to debug... but I guess somewhere between geotools 2.6.2
> and 2.7-RC1 the compatibility with emf.ecore was lost. In
> udig-sdk_1.2RC1 the version emf.ecore_2.5.0 was used and included (and
> it worked). I haven't checked the constructor details so far but maybe
> something has changed here.
>
> Any ideas / help?
>
>
>
> org.dews_online.ccui.spc.wps 4 0 2011-02-09 11:12:11.871
> !MESSAGE GetSupportedGeocodeTypesProcess: Parsing failed for Supported:
> java.lang.InstantiationError: org.eclipse.emf.ecore.util.EcoreEList
> !STACK 0
> java.lang.RuntimeException: Parsing failed for Supported:
> java.lang.InstantiationError: org.eclipse.emf.ecore.util.EcoreEList
> at org.geotools.xml.impl.ParseExecutor.visit(ParseExecutor.java:158)
> at
> org.geotools.xml.impl.BindingWalker$BindingExecutionChain.execute(BindingWalker.java:215)
> at org.geotools.xml.impl.BindingWalker.walk(BindingWalker.java:181)
> at
> org.geotools.xml.impl.ElementHandlerImpl.endElement(ElementHandlerImpl.java:222)
> at org.geotools.xml.impl.ParserHandler.endElement(ParserHandler.java:607)
> at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
> at
> org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown
> Source)
> at
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
> Source)
> at
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
> Source)
> at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
> at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
> at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
> at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
> at org.geotools.xml.Parser.parse(Parser.java:223)
> at org.geotools.xml.Parser.parse(Parser.java:151)
> at
> org.geotools.data.wps.response.DescribeProcessResponse.<init>(DescribeProcessResponse.java:67)
> at
> org.geotools.data.wps.WPS1_0_0$InternalDescribeProcessRequest.createResponse(WPS1_0_0.java:135)
> at
> org.geotools.data.ows.AbstractWPS.internalIssueRequest(AbstractWPS.java:419)
> at
> org.geotools.data.wps.WebProcessingService.issueRequest(WebProcessingService.java:235)
> at
> org.dews_online.geotools.wps.SimpleWpsConnector.getWpsFactory(SimpleWpsConnector.java:74)
> at
> org.dews_online.geotools.wps.SimpleWpsConnector.executeProcess(SimpleWpsConnector.java:113)
> at
> org.dews_online.ccui.spc.wps.processwrapper.AProcess.executeProcess(AProcess.java:40)
> at
> org.dews_online.ccui.spc.wps.processwrapper.GetGeocodesProcess.getGeoCodes(GetGeocodesProcess.java:63)
> at
> org.dews_online.ccui.spc.wps.processwrapper.GetGeocodesProcess.getGeoCodes(GetGeocodesProcess.java:87)
> at
> org.dews_online.ccui.ilc.control.jobs.UpdateGeocodeJob.run(UpdateGeocodeJob.java:41)
> at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
>
> Caused by: java.lang.InstantiationError:
> org.eclipse.emf.ecore.util.EcoreEList
> at net.opengis.wps10.impl.UOMsTypeImpl.getUOM(UOMsTypeImpl.java:81)
> at net.opengis.wps10.impl.UOMsTypeImpl.eGet(UOMsTypeImpl.java:94)
> at
> org.eclipse.emf.ecore.impl.BasicEObjectImpl.eGet(BasicEObjectImpl.java:1021)
> at
> org.eclipse.emf.ecore.impl.BasicEObjectImpl.eGet(BasicEObjectImpl.java:1013)
> at
> org.eclipse.emf.ecore.impl.BasicEObjectImpl.eGet(BasicEObjectImpl.java:1008)
> at org.geotools.xml.EMFUtils.get(EMFUtils.java:75)
> at org.geotools.xml.EMFUtils.isCollection(EMFUtils.java:140)
> at
> org.geotools.xml.AbstractComplexEMFBinding.setProperty(AbstractComplexEMFBinding.java:231)
> at
> org.geotools.xml.AbstractComplexEMFBinding.setProperties(AbstractComplexEMFBinding.java:204)
> at
> org.geotools.xml.AbstractComplexEMFBinding.parse(AbstractComplexEMFBinding.java:145)
> at org.geotools.xml.impl.ParseExecutor.visit(ParseExecutor.java:149)
> ... 25 more