Error 500 {msg=XSLT transformation error for xslt/main_ead.xsl,trace=java.io.IOException: XSLT transformation error for xslt/main_ead.xsl at com.infolytics.kopac.solr.XSLTResponseWriter.write(XSLTResponseWriter.java:219) at org.apache.solr.response.QueryResponseWriterUtil.writeQueryResponse(QueryResponseWriterUtil.java:65) at org.apache.solr.servlet.HttpSolrCall.writeResponse(HttpSolrCall.java:892) at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:594) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:419) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:351) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1602) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:540) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1711) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1347) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1678) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1249) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144) at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:220) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:152) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.Server.handle(Server.java:505) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:370) at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:311) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:132) at org.eclipse.jetty.http2.HTTP2Connection.produce(HTTP2Connection.java:170) at org.eclipse.jetty.http2.HTTP2Connection.onFillable(HTTP2Connection.java:125) at org.eclipse.jetty.http2.HTTP2Connection$FillableCallback.succeeded(HTTP2Connection.java:348) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103) at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:781) at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:917) at java.base/java.lang.Thread.run(Thread.java:829) Caused by: net.sf.saxon.trans.XPathException: A sequence of more than one item is not allowed as the second argument of concat() at net.sf.saxon.expr.Expression.typeError(Expression.java:1157) at net.sf.saxon.expr.SingletonAtomizer.evaluateItem(SingletonAtomizer.java:200) at net.sf.saxon.expr.SingletonAtomizer.evaluateItem(SingletonAtomizer.java:32) at net.sf.saxon.functions.Concat.evaluateItem(Concat.java:92) at net.sf.saxon.functions.Concat.evaluateAsString(Concat.java:81) at net.sf.saxon.expr.instruct.SimpleNodeConstructor.processLeavingTail(SimpleNodeConstructor.java:216) at net.sf.saxon.expr.instruct.Block.processLeavingTail(Block.java:657) at net.sf.saxon.expr.instruct.Instruction.process(Instruction.java:138) at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:429) at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:371) at net.sf.saxon.expr.instruct.Block.processLeavingTail(Block.java:657) at net.sf.saxon.expr.instruct.Instruction.process(Instruction.java:138) at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:429) at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:371) at net.sf.saxon.expr.instruct.Block.processLeavingTail(Block.java:657) at net.sf.saxon.expr.instruct.Instruction.process(Instruction.java:138) at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:429) at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:371) at net.sf.saxon.expr.instruct.Block.processLeavingTail(Block.java:657) at net.sf.saxon.expr.instruct.Instruction.process(Instruction.java:138) at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:429) at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:371) at net.sf.saxon.expr.instruct.Block.processLeavingTail(Block.java:657) at net.sf.saxon.expr.instruct.Instruction.process(Instruction.java:138) at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:429) at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:371) at net.sf.saxon.expr.instruct.Block.processLeavingTail(Block.java:657) at net.sf.saxon.expr.instruct.Instruction.process(Instruction.java:138) at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:429) at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:371) at net.sf.saxon.expr.LetExpression.processLeavingTail(LetExpression.java:610) at net.sf.saxon.expr.instruct.Block.processLeavingTail(Block.java:657) at net.sf.saxon.expr.instruct.Template.expand(Template.java:258) at net.sf.saxon.expr.instruct.CallTemplate$CallTemplatePackage.processLeavingTail(CallTemplate.java:534) at net.sf.saxon.Controller.transformDocument(Controller.java:2090) at net.sf.saxon.Controller.transform(Controller.java:1911) at com.infolytics.kopac.solr.XSLTResponseWriter.write(XSLTResponseWriter.java:217) ... 45 more ,code=500}

HTTP ERROR 500

Problem accessing /solr/kopac/ead. Reason:

    {msg=XSLT transformation error for xslt/main_ead.xsl,trace=java.io.IOException: XSLT transformation error for xslt/main_ead.xsl
	at com.infolytics.kopac.solr.XSLTResponseWriter.write(XSLTResponseWriter.java:219)
	at org.apache.solr.response.QueryResponseWriterUtil.writeQueryResponse(QueryResponseWriterUtil.java:65)
	at org.apache.solr.servlet.HttpSolrCall.writeResponse(HttpSolrCall.java:892)
	at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:594)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:419)
	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:351)
	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1602)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:540)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1711)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1347)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:480)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1678)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1249)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:220)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:152)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.Server.handle(Server.java:505)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:370)
	at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:311)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:132)
	at org.eclipse.jetty.http2.HTTP2Connection.produce(HTTP2Connection.java:170)
	at org.eclipse.jetty.http2.HTTP2Connection.onFillable(HTTP2Connection.java:125)
	at org.eclipse.jetty.http2.HTTP2Connection$FillableCallback.succeeded(HTTP2Connection.java:348)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
	at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:781)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:917)
	at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: net.sf.saxon.trans.XPathException: A sequence of more than one item is not allowed as the second argument of concat()
	at net.sf.saxon.expr.Expression.typeError(Expression.java:1157)
	at net.sf.saxon.expr.SingletonAtomizer.evaluateItem(SingletonAtomizer.java:200)
	at net.sf.saxon.expr.SingletonAtomizer.evaluateItem(SingletonAtomizer.java:32)
	at net.sf.saxon.functions.Concat.evaluateItem(Concat.java:92)
	at net.sf.saxon.functions.Concat.evaluateAsString(Concat.java:81)
	at net.sf.saxon.expr.instruct.SimpleNodeConstructor.processLeavingTail(SimpleNodeConstructor.java:216)
	at net.sf.saxon.expr.instruct.Block.processLeavingTail(Block.java:657)
	at net.sf.saxon.expr.instruct.Instruction.process(Instruction.java:138)
	at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:429)
	at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:371)
	at net.sf.saxon.expr.instruct.Block.processLeavingTail(Block.java:657)
	at net.sf.saxon.expr.instruct.Instruction.process(Instruction.java:138)
	at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:429)
	at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:371)
	at net.sf.saxon.expr.instruct.Block.processLeavingTail(Block.java:657)
	at net.sf.saxon.expr.instruct.Instruction.process(Instruction.java:138)
	at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:429)
	at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:371)
	at net.sf.saxon.expr.instruct.Block.processLeavingTail(Block.java:657)
	at net.sf.saxon.expr.instruct.Instruction.process(Instruction.java:138)
	at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:429)
	at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:371)
	at net.sf.saxon.expr.instruct.Block.processLeavingTail(Block.java:657)
	at net.sf.saxon.expr.instruct.Instruction.process(Instruction.java:138)
	at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:429)
	at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:371)
	at net.sf.saxon.expr.instruct.Block.processLeavingTail(Block.java:657)
	at net.sf.saxon.expr.instruct.Instruction.process(Instruction.java:138)
	at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:429)
	at net.sf.saxon.expr.instruct.ElementCreator.processLeavingTail(ElementCreator.java:371)
	at net.sf.saxon.expr.LetExpression.processLeavingTail(LetExpression.java:610)
	at net.sf.saxon.expr.instruct.Block.processLeavingTail(Block.java:657)
	at net.sf.saxon.expr.instruct.Template.expand(Template.java:258)
	at net.sf.saxon.expr.instruct.CallTemplate$CallTemplatePackage.processLeavingTail(CallTemplate.java:534)
	at net.sf.saxon.Controller.transformDocument(Controller.java:2090)
	at net.sf.saxon.Controller.transform(Controller.java:1911)
	at com.infolytics.kopac.solr.XSLTResponseWriter.write(XSLTResponseWriter.java:217)
	... 45 more
,code=500}