Error loading parsing complex schemas

The service URL is

http://webservices.ionicsoft.com/gazetteer/wfs/GNS_GAZ?

Capabilities
http://webservices.ionicsoft.com/gazetteer/wfs/GNS_GAZ?request=GetCapabilities&version=1.0.0&&service=WFS

FeatureType
http://webservices.ionicsoft.com/gazetteer/wfs/GNS_GAZ?request=DescribeFeatureType&version=1.0.0&&service=WFS&TypeNme=GNS_GAZ

The stack trace that occurs is:

!ENTRY net.refractions.udig.project.ui 1 0 2005-09-01 11:57:19.474
!MESSAGE Error connecting to resource
!STACK 0
java.lang.NullPointerException
at org.geotools.xml.handlers.xsi.SchemaHandler.lookUpComplexType(SchemaHandler.java:758)
at org.geotools.xml.handlers.xsi.ComplexTypeHandler.compress(ComplexTypeHandler.java:515)
at org.geotools.xml.handlers.xsi.SchemaHandler.compress(SchemaHandler.java:520)
at org.geotools.xml.handlers.xsi.RootHandler.getSchema(RootHandler.java:116)
at org.geotools.xml.XSISAXHandler.getSchema(XSISAXHandler.java:238)
at org.geotools.xml.SchemaFactory.getRealInstance(SchemaFactory.java:336)
at org.geotools.xml.SchemaFactory.getInstance(SchemaFactory.java:318)
at org.geotools.xml.SchemaFactory.getInstance(SchemaFactory.java:192)
at org.geotools.data.wfs.WFSDataStore.getSchemaPost(WFSDataStore.java:448)
at org.geotools.data.wfs.WFSDataStore.getSchema(WFSDataStore.java:281)
at net.refractions.udig.catalog.internal.wfs.WFSGeoResourceImpl$IGeoResourceWFSInfo.<init>(WFSGeoResourceImpl.java:146)
at net.refractions.udig.catalog.internal.wfs.WFSGeoResourceImpl.getInfo(WFSGeoResourceImpl.java:133)
at net.refractions.udig.project.ui.internal.ResourceSelectionPage$6.run(ResourceSelectionPage.java:373)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:113)
1-Sep-2005 11:57:19 AM org.geotools.xml.handlers.xsi.RootHandler getHandler
WARNING: Starting schema with schema element.
1-Sep-2005 11:57:20 AM org.geotools.xml.handlers.xsi.RootHandler getHandler
WARNING: Starting schema with schema element.