HTTP Status 500 – Internal Server Error


Type Exception Report

Message org.apache.cocoon.ProcessingException: Failed to process pipeline

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

Exception

javax.servlet.ServletException: org.apache.cocoon.ProcessingException: Failed to process pipeline
	at [DynamicError] - file:///usr/share/tomcat/work/Catalina/localhost/search/blocks/solrBlock/style/solr_browsing_formatter.xsl:67
	at <map:serialize type="html"> - file:///usr/share/tomcat/work/Catalina/localhost/search/blocks/solrBlock/sitemap.xmap:134:36
	at <map:transform type="xslt"> - file:///usr/share/tomcat/work/Catalina/localhost/search/blocks/solrBlock/sitemap.xmap:133:69
	at <map:transform type="xslt"> - file:///usr/share/tomcat/work/Catalina/localhost/search/blocks/solrBlock/sitemap.xmap:132:76
	at <map:transform type="xinclude"> - file:///usr/share/tomcat/work/Catalina/localhost/search/blocks/solrBlock/sitemap.xmap:131:37
	at <map:transform type="xslt"> - file:///usr/share/tomcat/work/Catalina/localhost/search/blocks/solrBlock/sitemap.xmap:126:71
	at <map:generate type="request"> - file:///usr/share/tomcat/work/Catalina/localhost/search/blocks/solrBlock/sitemap.xmap:123:37
	at <map:match> - file:///usr/share/tomcat/work/Catalina/localhost/search/blocks/solrBlock/sitemap.xmap:122:34
	org.apache.cocoon.servlet.RequestProcessor.service(RequestProcessor.java:230)
	org.apache.cocoon.sitemap.SitemapServlet.service(SitemapServlet.java:84)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.cocoon.servletservice.ServletServiceContext$PathDispatcher.forward(ServletServiceContext.java:468)
	org.apache.cocoon.servletservice.ServletServiceContext$PathDispatcher.forward(ServletServiceContext.java:443)
	org.apache.cocoon.servletservice.spring.ServletFactoryBean$ServiceInterceptor.invoke(ServletFactoryBean.java:264)
	org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
	com.sun.proxy.$Proxy9.service(Unknown Source)
	org.apache.cocoon.servletservice.DispatcherServlet.service(DispatcherServlet.java:106)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.cocoon.servlet.multipart.MultipartFilter.doFilter(MultipartFilter.java:131)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)

Root Cause

org.apache.cocoon.ProcessingException: Failed to process pipeline
	at [DynamicError] - file:///usr/share/tomcat/work/Catalina/localhost/search/blocks/solrBlock/style/solr_browsing_formatter.xsl:67
	at <map:serialize type="html"> - file:///usr/share/tomcat/work/Catalina/localhost/search/blocks/solrBlock/sitemap.xmap:134:36
	at <map:transform type="xslt"> - file:///usr/share/tomcat/work/Catalina/localhost/search/blocks/solrBlock/sitemap.xmap:133:69
	at <map:transform type="xslt"> - file:///usr/share/tomcat/work/Catalina/localhost/search/blocks/solrBlock/sitemap.xmap:132:76
	at <map:transform type="xinclude"> - file:///usr/share/tomcat/work/Catalina/localhost/search/blocks/solrBlock/sitemap.xmap:131:37
	at <map:transform type="xslt"> - file:///usr/share/tomcat/work/Catalina/localhost/search/blocks/solrBlock/sitemap.xmap:126:71
	at <map:generate type="request"> - file:///usr/share/tomcat/work/Catalina/localhost/search/blocks/solrBlock/sitemap.xmap:123:37
	at <map:match> - file:///usr/share/tomcat/work/Catalina/localhost/search/blocks/solrBlock/sitemap.xmap:122:34
	org.apache.cocoon.ProcessingException.throwLocated(ProcessingException.java:143)
	org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.handleException(AbstractProcessingPipeline.java:923)
	org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:548)
	org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:273)
	org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:439)
	sun.reflect.GeneratedMethodAccessor55.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
	com.sun.proxy.$Proxy12.process(Unknown Source)
	org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:147)
	org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55)
	org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87)
	org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78)
	org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
	org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78)
	org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81)
	org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239)
	org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:171)
	org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:247)
	org.apache.cocoon.servlet.RequestProcessor.process(RequestProcessor.java:351)
	org.apache.cocoon.servlet.RequestProcessor.service(RequestProcessor.java:169)
	org.apache.cocoon.sitemap.SitemapServlet.service(SitemapServlet.java:84)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.cocoon.servletservice.ServletServiceContext$PathDispatcher.forward(ServletServiceContext.java:468)
	org.apache.cocoon.servletservice.ServletServiceContext$PathDispatcher.forward(ServletServiceContext.java:443)
	org.apache.cocoon.servletservice.spring.ServletFactoryBean$ServiceInterceptor.invoke(ServletFactoryBean.java:264)
	org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
	com.sun.proxy.$Proxy9.service(Unknown Source)
	org.apache.cocoon.servletservice.DispatcherServlet.service(DispatcherServlet.java:106)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.cocoon.servlet.multipart.MultipartFilter.doFilter(MultipartFilter.java:131)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)

Root Cause

org.apache.commons.lang.exception.NestableRuntimeException: net.sf.saxon.trans.DynamicError: An empty sequence is not allowed as the value of variable $facet.field
	org.apache.cocoon.transformation.TraxTransformer.endDocument(TraxTransformer.java:581)
	sun.reflect.GeneratedMethodAccessor40.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
	com.sun.proxy.$Proxy13.endDocument(Unknown Source)
	org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:55)
	org.apache.cocoon.transformation.XIncludeTransformer$XIncludePipe.endDocument(XIncludeTransformer.java:227)
	org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:55)
	sun.reflect.GeneratedMethodAccessor40.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
	com.sun.proxy.$Proxy16.endDocument(Unknown Source)
	net.sf.saxon.event.ContentHandlerProxy.close(ContentHandlerProxy.java:168)
	net.sf.saxon.event.ProxyReceiver.close(ProxyReceiver.java:88)
	net.sf.saxon.event.ComplexContentOutputter.close(ComplexContentOutputter.java:461)
	net.sf.saxon.Controller.transformDocument(Controller.java:1539)
	net.sf.saxon.TransformerHandlerImpl.endDocument(TransformerHandlerImpl.java:133)
	org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:55)
	org.apache.cocoon.transformation.TraxTransformer.endDocument(TraxTransformer.java:563)
	sun.reflect.GeneratedMethodAccessor40.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
	com.sun.proxy.$Proxy13.endDocument(Unknown Source)
	org.apache.cocoon.generation.RequestGenerator.generate(RequestGenerator.java:201)
	sun.reflect.GeneratedMethodAccessor71.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
	com.sun.proxy.$Proxy15.generate(Unknown Source)
	org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:544)
	org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:273)
	org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:439)
	sun.reflect.GeneratedMethodAccessor55.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
	com.sun.proxy.$Proxy12.process(Unknown Source)
	org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:147)
	org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55)
	org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87)
	org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78)
	org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
	org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78)
	org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81)
	org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239)
	org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:171)
	org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:247)
	org.apache.cocoon.servlet.RequestProcessor.process(RequestProcessor.java:351)
	org.apache.cocoon.servlet.RequestProcessor.service(RequestProcessor.java:169)
	org.apache.cocoon.sitemap.SitemapServlet.service(SitemapServlet.java:84)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.cocoon.servletservice.ServletServiceContext$PathDispatcher.forward(ServletServiceContext.java:468)
	org.apache.cocoon.servletservice.ServletServiceContext$PathDispatcher.forward(ServletServiceContext.java:443)
	org.apache.cocoon.servletservice.spring.ServletFactoryBean$ServiceInterceptor.invoke(ServletFactoryBean.java:264)
	org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
	com.sun.proxy.$Proxy9.service(Unknown Source)
	org.apache.cocoon.servletservice.DispatcherServlet.service(DispatcherServlet.java:106)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.cocoon.servlet.multipart.MultipartFilter.doFilter(MultipartFilter.java:131)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)

Root Cause

net.sf.saxon.trans.DynamicError: An empty sequence is not allowed as the value of variable $facet.field
	net.sf.saxon.expr.ComputedExpression.typeError(ComputedExpression.java:642)
	net.sf.saxon.expr.CardinalityChecker$1.close(CardinalityChecker.java:163)
	net.sf.saxon.om.ClosingIterator.next(ClosingIterator.java:89)
	net.sf.saxon.expr.MappingIterator.next(MappingIterator.java:58)
	net.sf.saxon.value.SequenceExtent.<init>(SequenceExtent.java:105)
	net.sf.saxon.value.SequenceExtent.makeSequenceExtent(SequenceExtent.java:134)
	net.sf.saxon.expr.ExpressionTool.eagerEvaluate(ExpressionTool.java:286)
	net.sf.saxon.expr.ExpressionTool.lazyEvaluate(ExpressionTool.java:245)
	net.sf.saxon.instruct.GlobalVariable.getSelectValue(GlobalVariable.java:168)
	net.sf.saxon.instruct.GlobalVariable.evaluateVariable(GlobalVariable.java:192)
	net.sf.saxon.expr.VariableReference.evaluateVariable(VariableReference.java:244)
	net.sf.saxon.expr.VariableReference.evaluateItem(VariableReference.java:222)
	net.sf.saxon.expr.SingletonComparison.effectiveBooleanValue(SingletonComparison.java:72)
	net.sf.saxon.instruct.Choose.processLeavingTail(Choose.java:298)
	net.sf.saxon.instruct.Instruction.process(Instruction.java:91)
	net.sf.saxon.expr.LetExpression.process(LetExpression.java:202)
	net.sf.saxon.instruct.ForEach.processLeavingTail(ForEach.java:222)
	net.sf.saxon.instruct.Block.processLeavingTail(Block.java:332)
	net.sf.saxon.instruct.Instruction.process(Instruction.java:91)
	net.sf.saxon.instruct.ElementCreator.processLeavingTail(ElementCreator.java:164)
	net.sf.saxon.instruct.Block.processLeavingTail(Block.java:332)
	net.sf.saxon.instruct.Instruction.process(Instruction.java:91)
	net.sf.saxon.instruct.ElementCreator.processLeavingTail(ElementCreator.java:164)
	net.sf.saxon.instruct.Block.processLeavingTail(Block.java:332)
	net.sf.saxon.instruct.Instruction.process(Instruction.java:91)
	net.sf.saxon.instruct.ElementCreator.processLeavingTail(ElementCreator.java:164)
	net.sf.saxon.instruct.Block.processLeavingTail(Block.java:332)
	net.sf.saxon.instruct.Instruction.process(Instruction.java:91)
	net.sf.saxon.instruct.ElementCreator.processLeavingTail(ElementCreator.java:164)
	net.sf.saxon.instruct.Template.expand(Template.java:98)
	net.sf.saxon.instruct.Template.processLeavingTail(Template.java:82)
	net.sf.saxon.instruct.ApplyTemplates.applyTemplates(ApplyTemplates.java:297)
	net.sf.saxon.instruct.ApplyTemplates.defaultAction(ApplyTemplates.java:329)
	net.sf.saxon.instruct.ApplyTemplates.applyTemplates(ApplyTemplates.java:291)
	net.sf.saxon.Controller.transformDocument(Controller.java:1513)
	net.sf.saxon.TransformerHandlerImpl.endDocument(TransformerHandlerImpl.java:133)
	org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:55)
	org.apache.cocoon.transformation.TraxTransformer.endDocument(TraxTransformer.java:563)
	sun.reflect.GeneratedMethodAccessor40.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
	com.sun.proxy.$Proxy13.endDocument(Unknown Source)
	org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:55)
	org.apache.cocoon.transformation.XIncludeTransformer$XIncludePipe.endDocument(XIncludeTransformer.java:227)
	org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:55)
	sun.reflect.GeneratedMethodAccessor40.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
	com.sun.proxy.$Proxy16.endDocument(Unknown Source)
	net.sf.saxon.event.ContentHandlerProxy.close(ContentHandlerProxy.java:168)
	net.sf.saxon.event.ProxyReceiver.close(ProxyReceiver.java:88)
	net.sf.saxon.event.ComplexContentOutputter.close(ComplexContentOutputter.java:461)
	net.sf.saxon.Controller.transformDocument(Controller.java:1539)
	net.sf.saxon.TransformerHandlerImpl.endDocument(TransformerHandlerImpl.java:133)
	org.apache.cocoon.xml.AbstractXMLPipe.endDocument(AbstractXMLPipe.java:55)
	org.apache.cocoon.transformation.TraxTransformer.endDocument(TraxTransformer.java:563)
	sun.reflect.GeneratedMethodAccessor40.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
	com.sun.proxy.$Proxy13.endDocument(Unknown Source)
	org.apache.cocoon.generation.RequestGenerator.generate(RequestGenerator.java:201)
	sun.reflect.GeneratedMethodAccessor71.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
	com.sun.proxy.$Proxy15.generate(Unknown Source)
	org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processXMLPipeline(AbstractProcessingPipeline.java:544)
	org.apache.cocoon.components.pipeline.impl.AbstractCachingProcessingPipeline.processXMLPipeline(AbstractCachingProcessingPipeline.java:273)
	org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:439)
	sun.reflect.GeneratedMethodAccessor55.invoke(Unknown Source)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:498)
	org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
	com.sun.proxy.$Proxy12.process(Unknown Source)
	org.apache.cocoon.components.treeprocessor.sitemap.SerializeNode.invoke(SerializeNode.java:147)
	org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55)
	org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87)
	org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78)
	org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
	org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78)
	org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81)
	org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239)
	org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:171)
	org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:247)
	org.apache.cocoon.servlet.RequestProcessor.process(RequestProcessor.java:351)
	org.apache.cocoon.servlet.RequestProcessor.service(RequestProcessor.java:169)
	org.apache.cocoon.sitemap.SitemapServlet.service(SitemapServlet.java:84)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.cocoon.servletservice.ServletServiceContext$PathDispatcher.forward(ServletServiceContext.java:468)
	org.apache.cocoon.servletservice.ServletServiceContext$PathDispatcher.forward(ServletServiceContext.java:443)
	org.apache.cocoon.servletservice.spring.ServletFactoryBean$ServiceInterceptor.invoke(ServletFactoryBean.java:264)
	org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
	com.sun.proxy.$Proxy9.service(Unknown Source)
	org.apache.cocoon.servletservice.DispatcherServlet.service(DispatcherServlet.java:106)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.cocoon.servlet.multipart.MultipartFilter.doFilter(MultipartFilter.java:131)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)

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


Apache Tomcat/9.0.62