HTTP Status 500 – Internal Server Error

Type Exception Report

Message com.xpn.xwiki.XWikiException: Error number 11007 in 0: Failed to extract Entity Resource Reference from URL [http://<SERVER_NAME>/xwiki/bin/view/Main/WebHome]

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

javax.servlet.ServletException: com.xpn.xwiki.XWikiException: Error number 11007 in 0: Failed to extract Entity Resource Reference from URL [http://<SERVER_NAME>/xwiki/bin/view/Main/WebHome]
	org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:520)
	org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:427)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:112)
	org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:127)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
	org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
	org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
	org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:134)

Root Cause

com.xpn.xwiki.XWikiException: Error number 11007 in 0: Failed to extract Entity Resource Reference from URL [http://<SERVER_NAME>/xwiki/bin/view/Main/WebHome]
	com.xpn.xwiki.XWiki.initializeResourceFromURL(XWiki.java:978)
	com.xpn.xwiki.XWiki.getXWiki(XWiki.java:838)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:254)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:209)
	org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:112)
	org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:127)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
	org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
	org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
	org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:134)

Root Cause

java.lang.RuntimeException: Failed to locate wiki descriptor for alias [<SERVER_NAME>]
	org.xwiki.url.internal.standard.AbstractWikiReferenceExtractor.getWikiDescriptorByAlias(AbstractWikiReferenceExtractor.java:80)
	org.xwiki.url.internal.standard.DomainWikiReferenceExtractor.resolveDomainBasedWikiReference(DomainWikiReferenceExtractor.java:61)
	org.xwiki.url.internal.standard.DomainWikiReferenceExtractor.extract(DomainWikiReferenceExtractor.java:47)
	org.xwiki.url.internal.standard.entity.BinEntityResourceReferenceResolver.extractWikiReference(BinEntityResourceReferenceResolver.java:51)
	org.xwiki.url.internal.standard.entity.AbstractEntityResourceReferenceResolver.resolve(AbstractEntityResourceReferenceResolver.java:92)
	org.xwiki.url.internal.standard.entity.AbstractEntityResourceReferenceResolver.resolve(AbstractEntityResourceReferenceResolver.java:51)
	org.xwiki.url.internal.GenericResourceReferenceResolver.resolve(GenericResourceReferenceResolver.java:61)
	org.xwiki.url.internal.GenericResourceReferenceResolver.resolve(GenericResourceReferenceResolver.java:47)
	org.xwiki.url.internal.standard.StandardExtendedURLResourceReferenceResolver.resolve(StandardExtendedURLResourceReferenceResolver.java:65)
	org.xwiki.url.internal.standard.StandardExtendedURLResourceReferenceResolver.resolve(StandardExtendedURLResourceReferenceResolver.java:43)
	org.xwiki.url.internal.DefaultResourceReferenceResolver.resolve(DefaultResourceReferenceResolver.java:93)
	org.xwiki.url.internal.DefaultResourceReferenceResolver.resolve(DefaultResourceReferenceResolver.java:48)
	com.xpn.xwiki.XWiki.initializeResourceFromURL(XWiki.java:973)
	com.xpn.xwiki.XWiki.getXWiki(XWiki.java:838)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:254)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:209)
	org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:112)
	org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:127)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
	org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
	org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
	org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:134)

Root Cause

org.xwiki.wiki.manager.WikiManagerException: Failed to locate XWiki.XWikiServerClass document for wiki alias [<SERVER_NAME>]
	org.xwiki.wiki.internal.descriptor.document.DefaultWikiDescriptorDocumentHelper.findXWikiServerClassDocumentReference(DefaultWikiDescriptorDocumentHelper.java:128)
	org.xwiki.wiki.internal.descriptor.document.DefaultWikiDescriptorDocumentHelper.findXWikiServerClassDocument(DefaultWikiDescriptorDocumentHelper.java:140)
	org.xwiki.wiki.internal.descriptor.DefaultWikiDescriptorManager.getByAlias(DefaultWikiDescriptorManager.java:147)
	org.xwiki.url.internal.standard.AbstractWikiReferenceExtractor.getWikiDescriptorByAlias(AbstractWikiReferenceExtractor.java:78)
	org.xwiki.url.internal.standard.DomainWikiReferenceExtractor.resolveDomainBasedWikiReference(DomainWikiReferenceExtractor.java:61)
	org.xwiki.url.internal.standard.DomainWikiReferenceExtractor.extract(DomainWikiReferenceExtractor.java:47)
	org.xwiki.url.internal.standard.entity.BinEntityResourceReferenceResolver.extractWikiReference(BinEntityResourceReferenceResolver.java:51)
	org.xwiki.url.internal.standard.entity.AbstractEntityResourceReferenceResolver.resolve(AbstractEntityResourceReferenceResolver.java:92)
	org.xwiki.url.internal.standard.entity.AbstractEntityResourceReferenceResolver.resolve(AbstractEntityResourceReferenceResolver.java:51)
	org.xwiki.url.internal.GenericResourceReferenceResolver.resolve(GenericResourceReferenceResolver.java:61)
	org.xwiki.url.internal.GenericResourceReferenceResolver.resolve(GenericResourceReferenceResolver.java:47)
	org.xwiki.url.internal.standard.StandardExtendedURLResourceReferenceResolver.resolve(StandardExtendedURLResourceReferenceResolver.java:65)
	org.xwiki.url.internal.standard.StandardExtendedURLResourceReferenceResolver.resolve(StandardExtendedURLResourceReferenceResolver.java:43)
	org.xwiki.url.internal.DefaultResourceReferenceResolver.resolve(DefaultResourceReferenceResolver.java:93)
	org.xwiki.url.internal.DefaultResourceReferenceResolver.resolve(DefaultResourceReferenceResolver.java:48)
	com.xpn.xwiki.XWiki.initializeResourceFromURL(XWiki.java:973)
	com.xpn.xwiki.XWiki.getXWiki(XWiki.java:838)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:254)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:209)
	org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:112)
	org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:127)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
	org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
	org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
	org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:134)

Root Cause

org.xwiki.query.QueryException: Exception while translating [where doc.object(XWiki.XWikiServerClass).server = :wikiAlias and doc.name like 'XWikiServer%'] XWQL query to the [hql] language. Query statement = [where doc.object(XWiki.XWikiServerClass).server = :wikiAlias and doc.name like 'XWikiServer%']
	org.xwiki.query.xwql.internal.XWQLQueryExecutor.execute(XWQLQueryExecutor.java:130)
	org.xwiki.query.internal.DefaultQueryExecutorManager.execute(DefaultQueryExecutorManager.java:72)
	org.xwiki.query.internal.DefaultQuery.execute(DefaultQuery.java:296)
	org.xwiki.wiki.internal.descriptor.document.DefaultWikiDescriptorDocumentHelper.findXWikiServerClassDocumentReference(DefaultWikiDescriptorDocumentHelper.java:121)
	org.xwiki.wiki.internal.descriptor.document.DefaultWikiDescriptorDocumentHelper.findXWikiServerClassDocument(DefaultWikiDescriptorDocumentHelper.java:140)
	org.xwiki.wiki.internal.descriptor.DefaultWikiDescriptorManager.getByAlias(DefaultWikiDescriptorManager.java:147)
	org.xwiki.url.internal.standard.AbstractWikiReferenceExtractor.getWikiDescriptorByAlias(AbstractWikiReferenceExtractor.java:78)
	org.xwiki.url.internal.standard.DomainWikiReferenceExtractor.resolveDomainBasedWikiReference(DomainWikiReferenceExtractor.java:61)
	org.xwiki.url.internal.standard.DomainWikiReferenceExtractor.extract(DomainWikiReferenceExtractor.java:47)
	org.xwiki.url.internal.standard.entity.BinEntityResourceReferenceResolver.extractWikiReference(BinEntityResourceReferenceResolver.java:51)
	org.xwiki.url.internal.standard.entity.AbstractEntityResourceReferenceResolver.resolve(AbstractEntityResourceReferenceResolver.java:92)
	org.xwiki.url.internal.standard.entity.AbstractEntityResourceReferenceResolver.resolve(AbstractEntityResourceReferenceResolver.java:51)
	org.xwiki.url.internal.GenericResourceReferenceResolver.resolve(GenericResourceReferenceResolver.java:61)
	org.xwiki.url.internal.GenericResourceReferenceResolver.resolve(GenericResourceReferenceResolver.java:47)
	org.xwiki.url.internal.standard.StandardExtendedURLResourceReferenceResolver.resolve(StandardExtendedURLResourceReferenceResolver.java:65)
	org.xwiki.url.internal.standard.StandardExtendedURLResourceReferenceResolver.resolve(StandardExtendedURLResourceReferenceResolver.java:43)
	org.xwiki.url.internal.DefaultResourceReferenceResolver.resolve(DefaultResourceReferenceResolver.java:93)
	org.xwiki.url.internal.DefaultResourceReferenceResolver.resolve(DefaultResourceReferenceResolver.java:48)
	com.xpn.xwiki.XWiki.initializeResourceFromURL(XWiki.java:973)
	com.xpn.xwiki.XWiki.getXWiki(XWiki.java:838)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:254)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:209)
	org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:112)
	org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:127)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
	org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
	org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
	org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:134)

Root Cause

com.xpn.xwiki.XWikiException: Error number 3202 in 3: Exception while reading document [xwiki:XWiki.XWikiServerClass]
	com.xpn.xwiki.store.XWikiHibernateStore.loadXWikiDoc(XWikiHibernateStore.java:1022)
	com.xpn.xwiki.store.XWikiCacheStore.loadXWikiDoc(XWikiCacheStore.java:353)
	com.xpn.xwiki.XWiki.getDocument(XWiki.java:1896)
	com.xpn.xwiki.XWiki.getDocument(XWiki.java:1957)
	com.xpn.xwiki.XWiki.getXClass(XWiki.java:6350)
	com.xpn.xwiki.XWiki.getClass(XWiki.java:6363)
	com.xpn.xwiki.doc.DefaultDocumentAccessBridge.isPropertyCustomMapped(DefaultDocumentAccessBridge.java:537)
	org.xwiki.query.xwql.internal.QueryContext$PropertyInfo.isCustomMapped(QueryContext.java:153)
	org.xwiki.query.xwql.internal.QueryContext$ObjectInfo.isCustomMapped(QueryContext.java:122)
	org.xwiki.query.xwql.internal.hql.ObjectPrinter.print(ObjectPrinter.java:37)
	org.xwiki.query.xwql.internal.hql.Printer.print(Printer.java:70)
	org.xwiki.query.xwql.internal.hql.XWQLtoHQLTranslator.translate(XWQLtoHQLTranslator.java:61)
	org.xwiki.query.xwql.internal.XWQLQueryExecutor.execute(XWQLQueryExecutor.java:97)
	org.xwiki.query.internal.DefaultQueryExecutorManager.execute(DefaultQueryExecutorManager.java:72)
	org.xwiki.query.internal.DefaultQuery.execute(DefaultQuery.java:296)
	org.xwiki.wiki.internal.descriptor.document.DefaultWikiDescriptorDocumentHelper.findXWikiServerClassDocumentReference(DefaultWikiDescriptorDocumentHelper.java:121)
	org.xwiki.wiki.internal.descriptor.document.DefaultWikiDescriptorDocumentHelper.findXWikiServerClassDocument(DefaultWikiDescriptorDocumentHelper.java:140)
	org.xwiki.wiki.internal.descriptor.DefaultWikiDescriptorManager.getByAlias(DefaultWikiDescriptorManager.java:147)
	org.xwiki.url.internal.standard.AbstractWikiReferenceExtractor.getWikiDescriptorByAlias(AbstractWikiReferenceExtractor.java:78)
	org.xwiki.url.internal.standard.DomainWikiReferenceExtractor.resolveDomainBasedWikiReference(DomainWikiReferenceExtractor.java:61)
	org.xwiki.url.internal.standard.DomainWikiReferenceExtractor.extract(DomainWikiReferenceExtractor.java:47)
	org.xwiki.url.internal.standard.entity.BinEntityResourceReferenceResolver.extractWikiReference(BinEntityResourceReferenceResolver.java:51)
	org.xwiki.url.internal.standard.entity.AbstractEntityResourceReferenceResolver.resolve(AbstractEntityResourceReferenceResolver.java:92)
	org.xwiki.url.internal.standard.entity.AbstractEntityResourceReferenceResolver.resolve(AbstractEntityResourceReferenceResolver.java:51)
	org.xwiki.url.internal.GenericResourceReferenceResolver.resolve(GenericResourceReferenceResolver.java:61)
	org.xwiki.url.internal.GenericResourceReferenceResolver.resolve(GenericResourceReferenceResolver.java:47)
	org.xwiki.url.internal.standard.StandardExtendedURLResourceReferenceResolver.resolve(StandardExtendedURLResourceReferenceResolver.java:65)
	org.xwiki.url.internal.standard.StandardExtendedURLResourceReferenceResolver.resolve(StandardExtendedURLResourceReferenceResolver.java:43)
	org.xwiki.url.internal.DefaultResourceReferenceResolver.resolve(DefaultResourceReferenceResolver.java:93)
	org.xwiki.url.internal.DefaultResourceReferenceResolver.resolve(DefaultResourceReferenceResolver.java:48)
	com.xpn.xwiki.XWiki.initializeResourceFromURL(XWiki.java:973)
	com.xpn.xwiki.XWiki.getXWiki(XWiki.java:838)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:254)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:209)
	org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:112)
	org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:127)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
	org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
	org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
	org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:134)

Root Cause

org.hibernate.HibernateException: Could not create a DBCP pool. There is an error in the Hibernate configuration file, please review it.
	com.xpn.xwiki.store.DBCPConnectionProvider.configure(DBCPConnectionProvider.java:232)
	org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:143)
	org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:84)
	org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactory.java:459)
	org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:90)
	org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2863)
	org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2859)
	org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1870)
	com.xpn.xwiki.store.XWikiHibernateBaseStore.initHibernate(XWikiHibernateBaseStore.java:214)
	com.xpn.xwiki.store.XWikiHibernateBaseStore.checkHibernate(XWikiHibernateBaseStore.java:587)
	com.xpn.xwiki.store.XWikiHibernateStore.loadXWikiDoc(XWikiHibernateStore.java:891)
	com.xpn.xwiki.store.XWikiCacheStore.loadXWikiDoc(XWikiCacheStore.java:353)
	com.xpn.xwiki.XWiki.getDocument(XWiki.java:1896)
	com.xpn.xwiki.XWiki.getDocument(XWiki.java:1957)
	com.xpn.xwiki.XWiki.getXClass(XWiki.java:6350)
	com.xpn.xwiki.XWiki.getClass(XWiki.java:6363)
	com.xpn.xwiki.doc.DefaultDocumentAccessBridge.isPropertyCustomMapped(DefaultDocumentAccessBridge.java:537)
	org.xwiki.query.xwql.internal.QueryContext$PropertyInfo.isCustomMapped(QueryContext.java:153)
	org.xwiki.query.xwql.internal.QueryContext$ObjectInfo.isCustomMapped(QueryContext.java:122)
	org.xwiki.query.xwql.internal.hql.ObjectPrinter.print(ObjectPrinter.java:37)
	org.xwiki.query.xwql.internal.hql.Printer.print(Printer.java:70)
	org.xwiki.query.xwql.internal.hql.XWQLtoHQLTranslator.translate(XWQLtoHQLTranslator.java:61)
	org.xwiki.query.xwql.internal.XWQLQueryExecutor.execute(XWQLQueryExecutor.java:97)
	org.xwiki.query.internal.DefaultQueryExecutorManager.execute(DefaultQueryExecutorManager.java:72)
	org.xwiki.query.internal.DefaultQuery.execute(DefaultQuery.java:296)
	org.xwiki.wiki.internal.descriptor.document.DefaultWikiDescriptorDocumentHelper.findXWikiServerClassDocumentReference(DefaultWikiDescriptorDocumentHelper.java:121)
	org.xwiki.wiki.internal.descriptor.document.DefaultWikiDescriptorDocumentHelper.findXWikiServerClassDocument(DefaultWikiDescriptorDocumentHelper.java:140)
	org.xwiki.wiki.internal.descriptor.DefaultWikiDescriptorManager.getByAlias(DefaultWikiDescriptorManager.java:147)
	org.xwiki.url.internal.standard.AbstractWikiReferenceExtractor.getWikiDescriptorByAlias(AbstractWikiReferenceExtractor.java:78)
	org.xwiki.url.internal.standard.DomainWikiReferenceExtractor.resolveDomainBasedWikiReference(DomainWikiReferenceExtractor.java:61)
	org.xwiki.url.internal.standard.DomainWikiReferenceExtractor.extract(DomainWikiReferenceExtractor.java:47)
	org.xwiki.url.internal.standard.entity.BinEntityResourceReferenceResolver.extractWikiReference(BinEntityResourceReferenceResolver.java:51)
	org.xwiki.url.internal.standard.entity.AbstractEntityResourceReferenceResolver.resolve(AbstractEntityResourceReferenceResolver.java:92)
	org.xwiki.url.internal.standard.entity.AbstractEntityResourceReferenceResolver.resolve(AbstractEntityResourceReferenceResolver.java:51)
	org.xwiki.url.internal.GenericResourceReferenceResolver.resolve(GenericResourceReferenceResolver.java:61)
	org.xwiki.url.internal.GenericResourceReferenceResolver.resolve(GenericResourceReferenceResolver.java:47)
	org.xwiki.url.internal.standard.StandardExtendedURLResourceReferenceResolver.resolve(StandardExtendedURLResourceReferenceResolver.java:65)
	org.xwiki.url.internal.standard.StandardExtendedURLResourceReferenceResolver.resolve(StandardExtendedURLResourceReferenceResolver.java:43)
	org.xwiki.url.internal.DefaultResourceReferenceResolver.resolve(DefaultResourceReferenceResolver.java:93)
	org.xwiki.url.internal.DefaultResourceReferenceResolver.resolve(DefaultResourceReferenceResolver.java:48)
	com.xpn.xwiki.XWiki.initializeResourceFromURL(XWiki.java:973)
	com.xpn.xwiki.XWiki.getXWiki(XWiki.java:838)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:254)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:209)
	org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:112)
	org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:127)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
	org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
	org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
	org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:134)

Root Cause

java.sql.SQLException: Cannot load JDBC driver class 'com.mysql.jdbc.Driver'
	org.apache.commons.dbcp2.BasicDataSource.createConnectionFactory(BasicDataSource.java:2145)
	org.apache.commons.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:2039)
	org.apache.commons.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:1528)
	com.xpn.xwiki.store.DBCPConnectionProvider.configure(DBCPConnectionProvider.java:215)
	org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:143)
	org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:84)
	org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactory.java:459)
	org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:90)
	org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2863)
	org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2859)
	org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1870)
	com.xpn.xwiki.store.XWikiHibernateBaseStore.initHibernate(XWikiHibernateBaseStore.java:214)
	com.xpn.xwiki.store.XWikiHibernateBaseStore.checkHibernate(XWikiHibernateBaseStore.java:587)
	com.xpn.xwiki.store.XWikiHibernateStore.loadXWikiDoc(XWikiHibernateStore.java:891)
	com.xpn.xwiki.store.XWikiCacheStore.loadXWikiDoc(XWikiCacheStore.java:353)
	com.xpn.xwiki.XWiki.getDocument(XWiki.java:1896)
	com.xpn.xwiki.XWiki.getDocument(XWiki.java:1957)
	com.xpn.xwiki.XWiki.getXClass(XWiki.java:6350)
	com.xpn.xwiki.XWiki.getClass(XWiki.java:6363)
	com.xpn.xwiki.doc.DefaultDocumentAccessBridge.isPropertyCustomMapped(DefaultDocumentAccessBridge.java:537)
	org.xwiki.query.xwql.internal.QueryContext$PropertyInfo.isCustomMapped(QueryContext.java:153)
	org.xwiki.query.xwql.internal.QueryContext$ObjectInfo.isCustomMapped(QueryContext.java:122)
	org.xwiki.query.xwql.internal.hql.ObjectPrinter.print(ObjectPrinter.java:37)
	org.xwiki.query.xwql.internal.hql.Printer.print(Printer.java:70)
	org.xwiki.query.xwql.internal.hql.XWQLtoHQLTranslator.translate(XWQLtoHQLTranslator.java:61)
	org.xwiki.query.xwql.internal.XWQLQueryExecutor.execute(XWQLQueryExecutor.java:97)
	org.xwiki.query.internal.DefaultQueryExecutorManager.execute(DefaultQueryExecutorManager.java:72)
	org.xwiki.query.internal.DefaultQuery.execute(DefaultQuery.java:296)
	org.xwiki.wiki.internal.descriptor.document.DefaultWikiDescriptorDocumentHelper.findXWikiServerClassDocumentReference(DefaultWikiDescriptorDocumentHelper.java:121)
	org.xwiki.wiki.internal.descriptor.document.DefaultWikiDescriptorDocumentHelper.findXWikiServerClassDocument(DefaultWikiDescriptorDocumentHelper.java:140)
	org.xwiki.wiki.internal.descriptor.DefaultWikiDescriptorManager.getByAlias(DefaultWikiDescriptorManager.java:147)
	org.xwiki.url.internal.standard.AbstractWikiReferenceExtractor.getWikiDescriptorByAlias(AbstractWikiReferenceExtractor.java:78)
	org.xwiki.url.internal.standard.DomainWikiReferenceExtractor.resolveDomainBasedWikiReference(DomainWikiReferenceExtractor.java:61)
	org.xwiki.url.internal.standard.DomainWikiReferenceExtractor.extract(DomainWikiReferenceExtractor.java:47)
	org.xwiki.url.internal.standard.entity.BinEntityResourceReferenceResolver.extractWikiReference(BinEntityResourceReferenceResolver.java:51)
	org.xwiki.url.internal.standard.entity.AbstractEntityResourceReferenceResolver.resolve(AbstractEntityResourceReferenceResolver.java:92)
	org.xwiki.url.internal.standard.entity.AbstractEntityResourceReferenceResolver.resolve(AbstractEntityResourceReferenceResolver.java:51)
	org.xwiki.url.internal.GenericResourceReferenceResolver.resolve(GenericResourceReferenceResolver.java:61)
	org.xwiki.url.internal.GenericResourceReferenceResolver.resolve(GenericResourceReferenceResolver.java:47)
	org.xwiki.url.internal.standard.StandardExtendedURLResourceReferenceResolver.resolve(StandardExtendedURLResourceReferenceResolver.java:65)
	org.xwiki.url.internal.standard.StandardExtendedURLResourceReferenceResolver.resolve(StandardExtendedURLResourceReferenceResolver.java:43)
	org.xwiki.url.internal.DefaultResourceReferenceResolver.resolve(DefaultResourceReferenceResolver.java:93)
	org.xwiki.url.internal.DefaultResourceReferenceResolver.resolve(DefaultResourceReferenceResolver.java:48)
	com.xpn.xwiki.XWiki.initializeResourceFromURL(XWiki.java:973)
	com.xpn.xwiki.XWiki.getXWiki(XWiki.java:838)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:254)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:209)
	org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:112)
	org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:127)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
	org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
	org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
	org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:134)

Root Cause

java.lang.ClassNotFoundException: com.mysql.jdbc.Driver
	org.xwiki.classloader.URIClassLoader$1.run(URIClassLoader.java:193)
	org.xwiki.classloader.URIClassLoader$1.run(URIClassLoader.java:180)
	java.security.AccessController.doPrivileged(Native Method)
	org.xwiki.classloader.URIClassLoader.findClass(URIClassLoader.java:179)
	java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	org.xwiki.classloader.xwiki.internal.ContextNamespaceURLClassLoader.loadClass(ContextNamespaceURLClassLoader.java:176)
	org.apache.commons.dbcp2.BasicDataSource.createConnectionFactory(BasicDataSource.java:2137)
	org.apache.commons.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:2039)
	org.apache.commons.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:1528)
	com.xpn.xwiki.store.DBCPConnectionProvider.configure(DBCPConnectionProvider.java:215)
	org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:143)
	org.hibernate.connection.ConnectionProviderFactory.newConnectionProvider(ConnectionProviderFactory.java:84)
	org.hibernate.cfg.SettingsFactory.createConnectionProvider(SettingsFactory.java:459)
	org.hibernate.cfg.SettingsFactory.buildSettings(SettingsFactory.java:90)
	org.hibernate.cfg.Configuration.buildSettingsInternal(Configuration.java:2863)
	org.hibernate.cfg.Configuration.buildSettings(Configuration.java:2859)
	org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1870)
	com.xpn.xwiki.store.XWikiHibernateBaseStore.initHibernate(XWikiHibernateBaseStore.java:214)
	com.xpn.xwiki.store.XWikiHibernateBaseStore.checkHibernate(XWikiHibernateBaseStore.java:587)
	com.xpn.xwiki.store.XWikiHibernateStore.loadXWikiDoc(XWikiHibernateStore.java:891)
	com.xpn.xwiki.store.XWikiCacheStore.loadXWikiDoc(XWikiCacheStore.java:353)
	com.xpn.xwiki.XWiki.getDocument(XWiki.java:1896)
	com.xpn.xwiki.XWiki.getDocument(XWiki.java:1957)
	com.xpn.xwiki.XWiki.getXClass(XWiki.java:6350)
	com.xpn.xwiki.XWiki.getClass(XWiki.java:6363)
	com.xpn.xwiki.doc.DefaultDocumentAccessBridge.isPropertyCustomMapped(DefaultDocumentAccessBridge.java:537)
	org.xwiki.query.xwql.internal.QueryContext$PropertyInfo.isCustomMapped(QueryContext.java:153)
	org.xwiki.query.xwql.internal.QueryContext$ObjectInfo.isCustomMapped(QueryContext.java:122)
	org.xwiki.query.xwql.internal.hql.ObjectPrinter.print(ObjectPrinter.java:37)
	org.xwiki.query.xwql.internal.hql.Printer.print(Printer.java:70)
	org.xwiki.query.xwql.internal.hql.XWQLtoHQLTranslator.translate(XWQLtoHQLTranslator.java:61)
	org.xwiki.query.xwql.internal.XWQLQueryExecutor.execute(XWQLQueryExecutor.java:97)
	org.xwiki.query.internal.DefaultQueryExecutorManager.execute(DefaultQueryExecutorManager.java:72)
	org.xwiki.query.internal.DefaultQuery.execute(DefaultQuery.java:296)
	org.xwiki.wiki.internal.descriptor.document.DefaultWikiDescriptorDocumentHelper.findXWikiServerClassDocumentReference(DefaultWikiDescriptorDocumentHelper.java:121)
	org.xwiki.wiki.internal.descriptor.document.DefaultWikiDescriptorDocumentHelper.findXWikiServerClassDocument(DefaultWikiDescriptorDocumentHelper.java:140)
	org.xwiki.wiki.internal.descriptor.DefaultWikiDescriptorManager.getByAlias(DefaultWikiDescriptorManager.java:147)
	org.xwiki.url.internal.standard.AbstractWikiReferenceExtractor.getWikiDescriptorByAlias(AbstractWikiReferenceExtractor.java:78)
	org.xwiki.url.internal.standard.DomainWikiReferenceExtractor.resolveDomainBasedWikiReference(DomainWikiReferenceExtractor.java:61)
	org.xwiki.url.internal.standard.DomainWikiReferenceExtractor.extract(DomainWikiReferenceExtractor.java:47)
	org.xwiki.url.internal.standard.entity.BinEntityResourceReferenceResolver.extractWikiReference(BinEntityResourceReferenceResolver.java:51)
	org.xwiki.url.internal.standard.entity.AbstractEntityResourceReferenceResolver.resolve(AbstractEntityResourceReferenceResolver.java:92)
	org.xwiki.url.internal.standard.entity.AbstractEntityResourceReferenceResolver.resolve(AbstractEntityResourceReferenceResolver.java:51)
	org.xwiki.url.internal.GenericResourceReferenceResolver.resolve(GenericResourceReferenceResolver.java:61)
	org.xwiki.url.internal.GenericResourceReferenceResolver.resolve(GenericResourceReferenceResolver.java:47)
	org.xwiki.url.internal.standard.StandardExtendedURLResourceReferenceResolver.resolve(StandardExtendedURLResourceReferenceResolver.java:65)
	org.xwiki.url.internal.standard.StandardExtendedURLResourceReferenceResolver.resolve(StandardExtendedURLResourceReferenceResolver.java:43)
	org.xwiki.url.internal.DefaultResourceReferenceResolver.resolve(DefaultResourceReferenceResolver.java:93)
	org.xwiki.url.internal.DefaultResourceReferenceResolver.resolve(DefaultResourceReferenceResolver.java:48)
	com.xpn.xwiki.XWiki.initializeResourceFromURL(XWiki.java:973)
	com.xpn.xwiki.XWiki.getXWiki(XWiki.java:838)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:254)
	com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:209)
	org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
	org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:635)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
	com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:112)
	org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:127)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
	org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
	org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
	org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:134)

Note The full stack trace of the root cause is available in the server logs.
Apache Tomcat/8.5.34