HTTP ERROR 500

Problem accessing /sarit-pm/works/nyayakumudacandra.xml. Reason:

    Server Error

Caused by:

javax.servlet.ServletException: javax.servlet.ServletException: An error occurred while processing request to /sarit-pm/works/nyayakumudacandra.xml: An unknown error occurred: null
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146)
	at org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:527)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.Server.handle(Server.java:561)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:334)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:104)
	at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:247)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:243)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:679)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:597)
	at java.lang.Thread.run(Thread.java:748)
Caused by: javax.servlet.ServletException: An error occurred while processing request to /sarit-pm/works/nyayakumudacandra.xml: An unknown error occurred: null
	at org.exist.http.urlrewrite.XQueryURLRewrite.service(XQueryURLRewrite.java:381)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:833)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:535)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	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:190)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
	... 15 more
Caused by: javax.servlet.ServletException: An unknown error occurred: null
	at org.exist.http.servlets.EXistServlet.doPost(EXistServlet.java:478)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:841)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:535)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:566)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:163)
	at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:73)
	at org.exist.http.urlrewrite.Forward.doRewrite(Forward.java:50)
	at org.exist.http.urlrewrite.XQueryURLRewrite.doRewrite(XQueryURLRewrite.java:548)
	at org.exist.http.urlrewrite.XQueryURLRewrite.applyViews(XQueryURLRewrite.java:413)
	at org.exist.http.urlrewrite.XQueryURLRewrite.service(XQueryURLRewrite.java:359)
	... 33 more
Caused by: java.lang.NullPointerException
	at org.exist.xquery.DynamicTypeCheck.check(DynamicTypeCheck.java:84)
	at org.exist.xquery.DynamicTypeCheck.eval(DynamicTypeCheck.java:67)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:205)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:99)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:100)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.SwitchExpression.eval(SwitchExpression.java:104)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.functions.map.MapExpr.eval(MapExpr.java:50)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:99)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:261)
	at org.exist.xquery.value.FunctionReference.evalFunction(FunctionReference.java:89)
	at org.exist.xquery.functions.fn.FunHigherOrderFun.eval(FunHigherOrderFun.java:225)
	at org.exist.xquery.BasicFunction.eval(BasicFunction.java:74)
	at org.exist.xquery.InternalFunctionCall.eval(InternalFunctionCall.java:41)
	at org.exist.xquery.DynamicCardinalityCheck.eval(DynamicCardinalityCheck.java:74)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:205)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:100)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.EnclosedExpr.eval(EnclosedExpr.java:82)
	at org.exist.xquery.ElementConstructor.eval(ElementConstructor.java:329)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.TypeswitchExpression.eval(TypeswitchExpression.java:103)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.EnclosedExpr.eval(EnclosedExpr.java:82)
	at org.exist.xquery.ElementConstructor.eval(ElementConstructor.java:329)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.TypeswitchExpression.eval(TypeswitchExpression.java:103)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.isEmpty(DeferredFunctionCall.java:198)
	at org.exist.xquery.DynamicCardinalityCheck.eval(DynamicCardinalityCheck.java:76)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:205)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:100)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.EnclosedExpr.eval(EnclosedExpr.java:82)
	at org.exist.xquery.ElementConstructor.eval(ElementConstructor.java:329)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.TypeswitchExpression.eval(TypeswitchExpression.java:103)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.EnclosedExpr.eval(EnclosedExpr.java:82)
	at org.exist.xquery.ElementConstructor.eval(ElementConstructor.java:329)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:261)
	at org.exist.xquery.value.FunctionReference.evalFunction(FunctionReference.java:89)
	at org.exist.xquery.functions.fn.FunHigherOrderFun.eval(FunHigherOrderFun.java:225)
	at org.exist.xquery.BasicFunction.eval(BasicFunction.java:74)
	at org.exist.xquery.InternalFunctionCall.eval(InternalFunctionCall.java:41)
	at org.exist.xquery.DynamicCardinalityCheck.eval(DynamicCardinalityCheck.java:74)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:205)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:100)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.TypeswitchExpression.eval(TypeswitchExpression.java:103)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.XQuery.execute(XQuery.java:261)
	at org.exist.xquery.XQuery.execute(XQuery.java:185)
	at org.exist.http.RESTServer.executeXQuery(RESTServer.java:1539)
	at org.exist.http.RESTServer.doPost(RESTServer.java:679)
	at org.exist.http.servlets.EXistServlet.doPost(EXistServlet.java:451)
	... 56 more

Caused by:

javax.servlet.ServletException: An error occurred while processing request to /sarit-pm/works/nyayakumudacandra.xml: An unknown error occurred: null
	at org.exist.http.urlrewrite.XQueryURLRewrite.service(XQueryURLRewrite.java:381)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:833)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:535)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	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:190)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
	at org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:527)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.Server.handle(Server.java:561)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:334)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:104)
	at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:247)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:243)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:679)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:597)
	at java.lang.Thread.run(Thread.java:748)
Caused by: javax.servlet.ServletException: An unknown error occurred: null
	at org.exist.http.servlets.EXistServlet.doPost(EXistServlet.java:478)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:841)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:535)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:566)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:163)
	at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:73)
	at org.exist.http.urlrewrite.Forward.doRewrite(Forward.java:50)
	at org.exist.http.urlrewrite.XQueryURLRewrite.doRewrite(XQueryURLRewrite.java:548)
	at org.exist.http.urlrewrite.XQueryURLRewrite.applyViews(XQueryURLRewrite.java:413)
	at org.exist.http.urlrewrite.XQueryURLRewrite.service(XQueryURLRewrite.java:359)
	... 33 more
Caused by: java.lang.NullPointerException
	at org.exist.xquery.DynamicTypeCheck.check(DynamicTypeCheck.java:84)
	at org.exist.xquery.DynamicTypeCheck.eval(DynamicTypeCheck.java:67)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:205)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:99)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:100)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.SwitchExpression.eval(SwitchExpression.java:104)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.functions.map.MapExpr.eval(MapExpr.java:50)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:99)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:261)
	at org.exist.xquery.value.FunctionReference.evalFunction(FunctionReference.java:89)
	at org.exist.xquery.functions.fn.FunHigherOrderFun.eval(FunHigherOrderFun.java:225)
	at org.exist.xquery.BasicFunction.eval(BasicFunction.java:74)
	at org.exist.xquery.InternalFunctionCall.eval(InternalFunctionCall.java:41)
	at org.exist.xquery.DynamicCardinalityCheck.eval(DynamicCardinalityCheck.java:74)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:205)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:100)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.EnclosedExpr.eval(EnclosedExpr.java:82)
	at org.exist.xquery.ElementConstructor.eval(ElementConstructor.java:329)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.TypeswitchExpression.eval(TypeswitchExpression.java:103)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.EnclosedExpr.eval(EnclosedExpr.java:82)
	at org.exist.xquery.ElementConstructor.eval(ElementConstructor.java:329)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.TypeswitchExpression.eval(TypeswitchExpression.java:103)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.isEmpty(DeferredFunctionCall.java:198)
	at org.exist.xquery.DynamicCardinalityCheck.eval(DynamicCardinalityCheck.java:76)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:205)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:100)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.EnclosedExpr.eval(EnclosedExpr.java:82)
	at org.exist.xquery.ElementConstructor.eval(ElementConstructor.java:329)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.TypeswitchExpression.eval(TypeswitchExpression.java:103)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.EnclosedExpr.eval(EnclosedExpr.java:82)
	at org.exist.xquery.ElementConstructor.eval(ElementConstructor.java:329)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:261)
	at org.exist.xquery.value.FunctionReference.evalFunction(FunctionReference.java:89)
	at org.exist.xquery.functions.fn.FunHigherOrderFun.eval(FunHigherOrderFun.java:225)
	at org.exist.xquery.BasicFunction.eval(BasicFunction.java:74)
	at org.exist.xquery.InternalFunctionCall.eval(InternalFunctionCall.java:41)
	at org.exist.xquery.DynamicCardinalityCheck.eval(DynamicCardinalityCheck.java:74)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:205)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:100)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.TypeswitchExpression.eval(TypeswitchExpression.java:103)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.XQuery.execute(XQuery.java:261)
	at org.exist.xquery.XQuery.execute(XQuery.java:185)
	at org.exist.http.RESTServer.executeXQuery(RESTServer.java:1539)
	at org.exist.http.RESTServer.doPost(RESTServer.java:679)
	at org.exist.http.servlets.EXistServlet.doPost(EXistServlet.java:451)
	... 56 more

Caused by:

javax.servlet.ServletException: An unknown error occurred: null
	at org.exist.http.servlets.EXistServlet.doPost(EXistServlet.java:478)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:841)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:535)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:566)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:163)
	at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:73)
	at org.exist.http.urlrewrite.Forward.doRewrite(Forward.java:50)
	at org.exist.http.urlrewrite.XQueryURLRewrite.doRewrite(XQueryURLRewrite.java:548)
	at org.exist.http.urlrewrite.XQueryURLRewrite.applyViews(XQueryURLRewrite.java:413)
	at org.exist.http.urlrewrite.XQueryURLRewrite.service(XQueryURLRewrite.java:359)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:833)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:535)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	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:190)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
	at org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:527)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.Server.handle(Server.java:561)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:334)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:104)
	at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:247)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:243)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:679)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:597)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
	at org.exist.xquery.DynamicTypeCheck.check(DynamicTypeCheck.java:84)
	at org.exist.xquery.DynamicTypeCheck.eval(DynamicTypeCheck.java:67)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:205)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:99)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:100)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.SwitchExpression.eval(SwitchExpression.java:104)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.functions.map.MapExpr.eval(MapExpr.java:50)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:99)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:261)
	at org.exist.xquery.value.FunctionReference.evalFunction(FunctionReference.java:89)
	at org.exist.xquery.functions.fn.FunHigherOrderFun.eval(FunHigherOrderFun.java:225)
	at org.exist.xquery.BasicFunction.eval(BasicFunction.java:74)
	at org.exist.xquery.InternalFunctionCall.eval(InternalFunctionCall.java:41)
	at org.exist.xquery.DynamicCardinalityCheck.eval(DynamicCardinalityCheck.java:74)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:205)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:100)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.EnclosedExpr.eval(EnclosedExpr.java:82)
	at org.exist.xquery.ElementConstructor.eval(ElementConstructor.java:329)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.TypeswitchExpression.eval(TypeswitchExpression.java:103)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.EnclosedExpr.eval(EnclosedExpr.java:82)
	at org.exist.xquery.ElementConstructor.eval(ElementConstructor.java:329)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.TypeswitchExpression.eval(TypeswitchExpression.java:103)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.isEmpty(DeferredFunctionCall.java:198)
	at org.exist.xquery.DynamicCardinalityCheck.eval(DynamicCardinalityCheck.java:76)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:205)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:100)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.EnclosedExpr.eval(EnclosedExpr.java:82)
	at org.exist.xquery.ElementConstructor.eval(ElementConstructor.java:329)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.TypeswitchExpression.eval(TypeswitchExpression.java:103)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.EnclosedExpr.eval(EnclosedExpr.java:82)
	at org.exist.xquery.ElementConstructor.eval(ElementConstructor.java:329)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:261)
	at org.exist.xquery.value.FunctionReference.evalFunction(FunctionReference.java:89)
	at org.exist.xquery.functions.fn.FunHigherOrderFun.eval(FunHigherOrderFun.java:225)
	at org.exist.xquery.BasicFunction.eval(BasicFunction.java:74)
	at org.exist.xquery.InternalFunctionCall.eval(InternalFunctionCall.java:41)
	at org.exist.xquery.DynamicCardinalityCheck.eval(DynamicCardinalityCheck.java:74)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:205)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:100)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.TypeswitchExpression.eval(TypeswitchExpression.java:103)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.XQuery.execute(XQuery.java:261)
	at org.exist.xquery.XQuery.execute(XQuery.java:185)
	at org.exist.http.RESTServer.executeXQuery(RESTServer.java:1539)
	at org.exist.http.RESTServer.doPost(RESTServer.java:679)
	at org.exist.http.servlets.EXistServlet.doPost(EXistServlet.java:451)
	... 56 more

Caused by:

java.lang.NullPointerException
	at org.exist.xquery.DynamicTypeCheck.check(DynamicTypeCheck.java:84)
	at org.exist.xquery.DynamicTypeCheck.eval(DynamicTypeCheck.java:67)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:205)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:99)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:100)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.SwitchExpression.eval(SwitchExpression.java:104)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.functions.map.MapExpr.eval(MapExpr.java:50)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:99)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:261)
	at org.exist.xquery.value.FunctionReference.evalFunction(FunctionReference.java:89)
	at org.exist.xquery.functions.fn.FunHigherOrderFun.eval(FunHigherOrderFun.java:225)
	at org.exist.xquery.BasicFunction.eval(BasicFunction.java:74)
	at org.exist.xquery.InternalFunctionCall.eval(InternalFunctionCall.java:41)
	at org.exist.xquery.DynamicCardinalityCheck.eval(DynamicCardinalityCheck.java:74)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:205)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:100)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.EnclosedExpr.eval(EnclosedExpr.java:82)
	at org.exist.xquery.ElementConstructor.eval(ElementConstructor.java:329)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.TypeswitchExpression.eval(TypeswitchExpression.java:103)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.EnclosedExpr.eval(EnclosedExpr.java:82)
	at org.exist.xquery.ElementConstructor.eval(ElementConstructor.java:329)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.TypeswitchExpression.eval(TypeswitchExpression.java:103)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.isEmpty(DeferredFunctionCall.java:198)
	at org.exist.xquery.DynamicCardinalityCheck.eval(DynamicCardinalityCheck.java:76)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:205)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:100)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.EnclosedExpr.eval(EnclosedExpr.java:82)
	at org.exist.xquery.ElementConstructor.eval(ElementConstructor.java:329)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.TypeswitchExpression.eval(TypeswitchExpression.java:103)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.SequenceConstructor.eval(SequenceConstructor.java:84)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.EnclosedExpr.eval(EnclosedExpr.java:82)
	at org.exist.xquery.ElementConstructor.eval(ElementConstructor.java:329)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:102)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:261)
	at org.exist.xquery.value.FunctionReference.evalFunction(FunctionReference.java:89)
	at org.exist.xquery.functions.fn.FunHigherOrderFun.eval(FunHigherOrderFun.java:225)
	at org.exist.xquery.BasicFunction.eval(BasicFunction.java:74)
	at org.exist.xquery.InternalFunctionCall.eval(InternalFunctionCall.java:41)
	at org.exist.xquery.DynamicCardinalityCheck.eval(DynamicCardinalityCheck.java:74)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:205)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.ConditionalExpression.eval(ConditionalExpression.java:100)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall$DeferredFunctionCallImpl.execute(FunctionCall.java:434)
	at org.exist.xquery.DeferredFunctionCall.realize(DeferredFunctionCall.java:57)
	at org.exist.xquery.DeferredFunctionCall.iterate(DeferredFunctionCall.java:230)
	at org.exist.xquery.value.ValueSequence.addAll(ValueSequence.java:159)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.TypeswitchExpression.eval(TypeswitchExpression.java:103)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:65)
	at org.exist.xquery.ForExpr.processItem(ForExpr.java:251)
	at org.exist.xquery.ForExpr.eval(ForExpr.java:189)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.UserDefinedFunction.eval(UserDefinedFunction.java:160)
	at org.exist.xquery.FunctionCall.evalFunction(FunctionCall.java:302)
	at org.exist.xquery.FunctionCall.eval(FunctionCall.java:223)
	at org.exist.xquery.DebuggableExpression.eval(DebuggableExpression.java:58)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.LetExpr.eval(LetExpr.java:111)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.PathExpr.eval(PathExpr.java:276)
	at org.exist.xquery.AbstractExpression.eval(AbstractExpression.java:71)
	at org.exist.xquery.XQuery.execute(XQuery.java:261)
	at org.exist.xquery.XQuery.execute(XQuery.java:185)
	at org.exist.http.RESTServer.executeXQuery(RESTServer.java:1539)
	at org.exist.http.RESTServer.doPost(RESTServer.java:679)
	at org.exist.http.servlets.EXistServlet.doPost(EXistServlet.java:451)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:841)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:535)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:566)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:163)
	at org.eclipse.jetty.server.Dispatcher.forward(Dispatcher.java:73)
	at org.exist.http.urlrewrite.Forward.doRewrite(Forward.java:50)
	at org.exist.http.urlrewrite.XQueryURLRewrite.doRewrite(XQueryURLRewrite.java:548)
	at org.exist.http.urlrewrite.XQueryURLRewrite.applyViews(XQueryURLRewrite.java:413)
	at org.exist.http.urlrewrite.XQueryURLRewrite.service(XQueryURLRewrite.java:359)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
	at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:833)
	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:535)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
	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:190)
	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
	at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
	at org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:527)
	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
	at org.eclipse.jetty.server.Server.handle(Server.java:561)
	at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:334)
	at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:251)
	at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
	at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:104)
	at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:247)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)
	at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
	at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:243)
	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:679)
	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:597)
	at java.lang.Thread.run(Thread.java:748)

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