java.lang.ClassNotFoundException: org.netbeans.modules.websvc.wsitmodelext.catalog.WSITSchemaCatalog
   at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
   at java.security.AccessController.doPrivileged(AccessController.java:0)
   at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
   at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
Caused: java.lang.ClassNotFoundException: org.netbeans.modules.websvc.wsitmodelext.catalog.WSITSchemaCatalog starting from SystemClassLoader[359 modules] with possible defining loaders null and declared parents [ModuleCL@12dd538[org.netbeans.swing.outline], ModuleCL@2af8f5[org.netbeans.modules.ide.kit], ModuleCL@1dd9891[org.netbeans.modules.editor.settings], ModuleCL@1bbbafc[org.netbeans.modules.keyring.impl], ModuleCL@1531164[org.netbeans.spi.debugger.ui], ModuleCL@135da43[org.netbeans.modules.projectui.buildmenu], ModuleCL@f449b8[org.netbeans.libs.commons_logging], ModuleCL@ff45de[org.netbeans.libs.ini4j], ModuleCL@96b5c2[org.netbeans.spi.quicksearch], ModuleCL@14ed577[org.netbeans.modules.maven.grammar], ...343 more]
   at org.netbeans.ProxyClassLoader.loadClass(ProxyClassLoader.java:264)
   at org.netbeans.ModuleManager$SystemClassLoader.loadClass(ModuleManager.java:547)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
   at org.openide.loaders.InstanceSupport.findClass(InstanceSupport.java:502)
   at org.openide.loaders.InstanceSupport.instanceClass(InstanceSupport.java:148)
   at org.openide.loaders.InstanceDataObject$Ser.instanceClass(InstanceDataObject.java:1313)
   at org.openide.loaders.InstanceSupport.instanceCreate(InstanceSupport.java:214)
   at org.openide.loaders.InstanceDataObject$Ser.instanceCreate(InstanceDataObject.java:1383)
   at org.openide.loaders.InstanceDataObject.instanceCreate(InstanceDataObject.java:821)
   at org.openide.loaders.FolderLookup$ICItem.getInstance(FolderLookup.java:594)
   at org.openide.util.lookup.AbstractLookup$R.allInstances(AbstractLookup.java:1005)
   at org.openide.util.lookup.ProxyLookup$R.computeResult(ProxyLookup.java:551)
   at org.openide.util.lookup.ProxyLookup$R.allInstances(ProxyLookup.java:491)
   at org.openide.util.lookup.ProxyLookup$R.computeResult(ProxyLookup.java:551)
   at org.openide.util.lookup.ProxyLookup$R.allInstances(ProxyLookup.java:491)
   at org.netbeans.modules.xml.catalog.settings.CatalogSettings.getCatalogs(CatalogSettings.java:215)
   at org.netbeans.modules.xml.catalog.CatalogEntityResolver.resolveEntity(CatalogEntityResolver.java:100)
   at org.netbeans.modules.xml.tax.parser.TreeStreamSource$EntityResolverWrapper.resolveEntity(TreeStreamSource.java:276)
   at org.apache.xerces.util.EntityResolverWrapper.resolveEntity(EntityResolverWrapper.java:0)
   at org.apache.xerces.impl.XMLEntityManager.resolveEntity(XMLEntityManager.java:0)
   at org.apache.xerces.impl.XMLDocumentScannerImpl$DTDDispatcher.dispatch(XMLDocumentScannerImpl.java:0)
   at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:0)
   at org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:0)
   at org.apache.xerces.parsers.XML11Configuration.parse(XML11Configuration.java:0)
   at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:0)
   at org.apache.xerces.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:0)
   at org.netbeans.tax.io.XNIBuilder$XMLBuilder.parse(XNIBuilder.java:346)
   at org.netbeans.tax.io.XNIBuilder.buildDocument(XNIBuilder.java:172)
   at org.netbeans.modules.xml.tax.parser.XMLParsingSupport.parse(XMLParsingSupport.java:71)
   at org.netbeans.modules.apisupport.project.layers.LayerUtils$CookieImpl.openDocumentRoot(LayerUtils.java:343)
   at org.netbeans.modules.apisupport.project.layers.WritableXMLFileSystem.<init>(WritableXMLFileSystem.java:134)
   at org.netbeans.modules.apisupport.project.api.LayerHandle.layer(LayerHandle.java:157)
   at org.netbeans.modules.apisupport.hints.LayerHints$Prov.run(LayerHints.java:151)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1424)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1968)