[Geotools-gt2-users] WFS Datastore does not work

[Emmanuel B. <emm...@gm...>]

Hello all,

Since a few weeks, i don't know why but the WFS Datastore does not work 
anymore in my codes.
I'm using GeoTools 8.2.

Here the sample code I run:

/SimpleFeatureCollection result = null;//
//        try{//
////
//            String wfsGetCap = 
"http://localhost:8080/geoserver/ows?service=WFS&version=1.0.0&request=GetCapabilities";//
////
//            // use the WFS Datastore//
//            Map<String, Serializable> params = new HashMap<String, 
Serializable>();//
//            params.put(WFSDataStoreFactory.URL.key, wfsGetCap);//
//            params.put(WFSDataStoreFactory.TIMEOUT.key, new 
Integer(60000));//
////
//            DataStore datastore = DataStoreFinder.getDataStore(params);//
//            SimpleFeatureSource featureSource = 
datastore.getFeatureSource("mylayer");//
////
////
//            result = featureSource.getFeatures();//
////
//        }catch(Exception e){//
//            new RuntimeException("Unable to get the target 
collection", e);//
//        }//
////
//System.out.println(result.size());/


and the error i get:

/Exception in thread "main" java.lang.NoSuchMethodError: 
org.geotools.filter.capability.FunctionNameImpl.parameter(Ljava/lang/String;Ljava/lang/Class;)Lorg/opengis/parameter/Parameter;//
//    at 
org.geotools.filter.function.FilterFunction_setCRS.<clinit>(FilterFunction_setCRS.java:32)//
//    at java.lang.Class.forName0(Native Method)//
//    at java.lang.Class.forName(Class.java:247)//
//    at sun.misc.Service$LazyIterator.next(Service.java:271)//
//    at 
org.geotools.factory.FactoryRegistry.register(FactoryRegistry.java:823)//
//    at 
org.geotools.factory.FactoryRegistry.scanForPlugins(FactoryRegistry.java:769)//
//    at 
org.geotools.factory.FactoryRegistry.scanForPluginsIfNeeded(FactoryRegistry.java:802)//
//    at 
org.geotools.factory.FactoryRegistry.getServiceProviders(FactoryRegistry.java:195)//
//    at 
org.geotools.factory.CommonFactoryFinder.getFunctions(CommonFactoryFinder.java:147)//
//    at 
org.geotools.filter.FilterNameTypeMapping.loadFunctionNameMap(FilterNameTypeMapping.java:157)//
//    at 
org.geotools.filter.FilterNameTypeMapping.<clinit>(FilterNameTypeMapping.java:35)//
//    at 
org.geotools.filter.FilterCapabilities.findOperation(FilterCapabilities.java:453)//
//    at 
org.geotools.xml.filter.FilterComplexTypes$Spatial_OperatorsType.getValue(FilterComplexTypes.java:881)//
//    at 
org.geotools.xml.handlers.ComplexElementHandler.endElement(ComplexElementHandler.java:187)//
//    at org.geotools.xml.XMLSAXHandler.endElement(XMLSAXHandler.java:263)//
//    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.DTDConfiguration.parse(Unknown Source)//
//    at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)//
//    at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)//
//    at javax.xml.parsers.SAXParser.parse(SAXParser.java:395)//
//    at javax.xml.parsers.SAXParser.parse(SAXParser.java:198)//
//    at 
org.geotools.xml.DocumentFactory.getInstance(DocumentFactory.java:133)//
//    at 
org.geotools.data.wfs.v1_0_0.WFS100ProtocolHandler.parseCapabilities(WFS100ProtocolHandler.java:66)//
//    at 
org.geotools.data.wfs.v1_0_0.WFS100ProtocolHandler.<init>(WFS100ProtocolHandler.java:47)//
//    at 
org.geotools.data.wfs.WFSDataStoreFactory.createDataStore(WFSDataStoreFactory.java:376)//
//    at 
org.geotools.data.wfs.WFSDataStoreFactory.createDataStore(WFSDataStoreFactory.java:118)//
//    at 
org.geotools.data.DataAccessFinder.getDataStore(DataAccessFinder.java:129)//
//    at 
org.geotools.data.DataStoreFinder.getDataStore(DataStoreFinder.java:88)//
//    at org.fao.figis.gis.wps.process.feature.App.main(App.java:32)/

Could somebody help me in identifying what's the issue and solve it?
In other case, does anyone know an efficient way to get feature 
collections from WFS (possibly applying a filter)?

Thanks in advance
Emmanuel