HTTP Status 500 – Internal Server Error


Type Exception Report

Message Request processing failed; nested exception is java.lang.RuntimeException: net.sf.saxon.trans.XPathException: An empty sequence is not allowed as the first argument of gn-fn-core:get-schema-org-class()

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

Exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.RuntimeException: net.sf.saxon.trans.XPathException: An empty sequence is not allowed as the first argument of gn-fn-core:get-schema-org-class()
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:982)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.fao.geonet.web.CORSResponseFilter.doFilter(CORSResponseFilter.java:129)
	org.fao.geonet.monitor.webapp.WebappMetricsFilter.doFilter(WebappMetricsFilter.java:121)
	org.fao.geonet.monitor.webapp.MetricsRegistryInitializerFilter.doFilter(MetricsRegistryInitializerFilter.java:58)
	org.fao.geonet.web.XFrameOptionsFilter.doFilter(XFrameOptionsFilter.java:110)
	org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:176)
	org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145)
	org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92)
	org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:394)
	org.geonetwork.http.SessionTimeoutCookieFilter.doFilter(SessionTimeoutCookieFilter.java:91)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
	org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:199)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	jeeves.config.springutil.PassthroughFilter.doFilter(PassthroughFilter.java:50)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:110)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:85)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
	org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
	org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
	org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)
	jeeves.config.springutil.JeevesDelegatingFilterProxy.doFilter(JeevesDelegatingFilterProxy.java:104)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

Root Cause

java.lang.RuntimeException: net.sf.saxon.trans.XPathException: An empty sequence is not allowed as the first argument of gn-fn-core:get-schema-org-class()
	jeeves.transaction.TransactionManager.runInTransaction(TransactionManager.java:108)
	jeeves.config.springutil.JeevesDispatcherServlet.doDispatch(JeevesDispatcherServlet.java:49)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.fao.geonet.web.CORSResponseFilter.doFilter(CORSResponseFilter.java:129)
	org.fao.geonet.monitor.webapp.WebappMetricsFilter.doFilter(WebappMetricsFilter.java:121)
	org.fao.geonet.monitor.webapp.MetricsRegistryInitializerFilter.doFilter(MetricsRegistryInitializerFilter.java:58)
	org.fao.geonet.web.XFrameOptionsFilter.doFilter(XFrameOptionsFilter.java:110)
	org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:176)
	org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145)
	org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92)
	org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:394)
	org.geonetwork.http.SessionTimeoutCookieFilter.doFilter(SessionTimeoutCookieFilter.java:91)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
	org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:199)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	jeeves.config.springutil.PassthroughFilter.doFilter(PassthroughFilter.java:50)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:110)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:85)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
	org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
	org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
	org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)
	jeeves.config.springutil.JeevesDelegatingFilterProxy.doFilter(JeevesDelegatingFilterProxy.java:104)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

Root Cause

net.sf.saxon.trans.XPathException: An empty sequence is not allowed as the first argument of gn-fn-core:get-schema-org-class()
	net.sf.saxon.expr.Expression.typeError(Expression.java:981)
	net.sf.saxon.expr.CardinalityChecker.evaluateItem(CardinalityChecker.java:277)
	net.sf.saxon.expr.ExpressionTool.evaluate(ExpressionTool.java:296)
	net.sf.saxon.expr.UserFunctionCall.evaluateArguments(UserFunctionCall.java:486)
	net.sf.saxon.expr.UserFunctionCall.callFunction(UserFunctionCall.java:412)
	net.sf.saxon.expr.UserFunctionCall.evaluateItem(UserFunctionCall.java:374)
	net.sf.saxon.instruct.SimpleContentConstructor.evaluateItem(SimpleContentConstructor.java:261)
	net.sf.saxon.instruct.SimpleNodeConstructor.expandChildren(SimpleNodeConstructor.java:166)
	net.sf.saxon.instruct.FixedAttribute.processLeavingTail(FixedAttribute.java:231)
	net.sf.saxon.instruct.Block.processLeavingTail(Block.java:556)
	net.sf.saxon.instruct.Instruction.process(Instruction.java:93)
	net.sf.saxon.instruct.ElementCreator.processLeavingTail(ElementCreator.java:296)
	net.sf.saxon.instruct.Instruction.process(Instruction.java:93)
	net.sf.saxon.instruct.ForEach.processLeavingTail(ForEach.java:321)
	net.sf.saxon.instruct.Block.processLeavingTail(Block.java:556)
	net.sf.saxon.instruct.Instruction.process(Instruction.java:93)
	net.sf.saxon.instruct.ElementCreator.processLeavingTail(ElementCreator.java:296)
	net.sf.saxon.instruct.Block.processLeavingTail(Block.java:556)
	net.sf.saxon.instruct.Instruction.process(Instruction.java:93)
	net.sf.saxon.instruct.ForEach.processLeavingTail(ForEach.java:321)
	net.sf.saxon.expr.LetExpression.processLeavingTail(LetExpression.java:557)
	net.sf.saxon.instruct.Block.processLeavingTail(Block.java:556)
	net.sf.saxon.instruct.Instruction.process(Instruction.java:93)
	net.sf.saxon.instruct.ElementCreator.processLeavingTail(ElementCreator.java:296)
	net.sf.saxon.instruct.Choose.processLeavingTail(Choose.java:686)
	net.sf.saxon.instruct.Block.processLeavingTail(Block.java:556)
	net.sf.saxon.instruct.Instruction.process(Instruction.java:93)
	net.sf.saxon.instruct.ElementCreator.processLeavingTail(ElementCreator.java:296)
	net.sf.saxon.expr.LetExpression.processLeavingTail(LetExpression.java:557)
	net.sf.saxon.instruct.Template.applyLeavingTail(Template.java:203)
	net.sf.saxon.instruct.ApplyTemplates.applyTemplates(ApplyTemplates.java:345)
	net.sf.saxon.instruct.ApplyTemplates.apply(ApplyTemplates.java:210)
	net.sf.saxon.instruct.ApplyTemplates.process(ApplyTemplates.java:170)
	net.sf.saxon.instruct.DocumentInstr.evaluateItem(DocumentInstr.java:278)
	net.sf.saxon.expr.ExpressionTool.evaluate(ExpressionTool.java:296)
	net.sf.saxon.instruct.GeneralVariable.getSelectValue(GeneralVariable.java:374)
	net.sf.saxon.instruct.Instruction.assembleParams(Instruction.java:147)
	net.sf.saxon.instruct.CallTemplate.processLeavingTail(CallTemplate.java:291)
	net.sf.saxon.instruct.Template.applyLeavingTail(Template.java:203)
	net.sf.saxon.instruct.ApplyTemplates.applyTemplates(ApplyTemplates.java:345)
	net.sf.saxon.Controller.transformDocument(Controller.java:1807)
	net.sf.saxon.Controller.transform(Controller.java:1621)
	org.fao.geonet.utils.Xml.transform(Xml.java:515)
	org.fao.geonet.utils.Xml.transform(Xml.java:388)
	org.fao.geonet.guiapi.search.XsltResponseWriter.asElement(XsltResponseWriter.java:97)
	org.fao.geonet.guiapi.search.XsltResponseWriter.asHtml(XsltResponseWriter.java:100)
	org.fao.geonet.guiapi.search.SearchApi.getFieldInfo(SearchApi.java:119)
	sun.reflect.GeneratedMethodAccessor338.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
	org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:136)
	org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:114)
	org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)
	org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)
	org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
	org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963)
	jeeves.config.springutil.JeevesDispatcherServlet.access$101(JeevesDispatcherServlet.java:44)
	jeeves.config.springutil.JeevesDispatcherServlet$1.doInTransaction(JeevesDispatcherServlet.java:56)
	jeeves.config.springutil.JeevesDispatcherServlet$1.doInTransaction(JeevesDispatcherServlet.java:52)
	jeeves.transaction.TransactionManager.runInTransaction(TransactionManager.java:73)
	jeeves.config.springutil.JeevesDispatcherServlet.doDispatch(JeevesDispatcherServlet.java:49)
	org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897)
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:634)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	org.fao.geonet.web.CORSResponseFilter.doFilter(CORSResponseFilter.java:129)
	org.fao.geonet.monitor.webapp.WebappMetricsFilter.doFilter(WebappMetricsFilter.java:121)
	org.fao.geonet.monitor.webapp.MetricsRegistryInitializerFilter.doFilter(MetricsRegistryInitializerFilter.java:58)
	org.fao.geonet.web.XFrameOptionsFilter.doFilter(XFrameOptionsFilter.java:110)
	org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:176)
	org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145)
	org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92)
	org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:394)
	org.geonetwork.http.SessionTimeoutCookieFilter.doFilter(SessionTimeoutCookieFilter.java:91)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330)
	org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118)
	org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:199)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	jeeves.config.springutil.PassthroughFilter.doFilter(PassthroughFilter.java:50)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:110)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.csrf.CsrfFilter.doFilterInternal(CsrfFilter.java:85)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
	org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342)
	org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192)
	org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160)
	org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
	org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)
	jeeves.config.springutil.JeevesDelegatingFilterProxy.doFilter(JeevesDelegatingFilterProxy.java:104)
	org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197)
	org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)

Note The full stack trace of the root cause is available in the server logs.


Apache Tomcat/8.5.54