Untitled

HTTP/1.1 100 Continue

HTTP/1.1 500 Internal Server Error
Date: Thu, 21 Dec 2017 12:33:18 GMT
Server: Apache/2.4.18 (Ubuntu)
Content-Type: text/html;charset=utf-8
Content-Language: en
Content-Length: 3522
Connection: close

<html><head><title>Apache Tomcat/7.0.68 (Ubuntu) - Error report</title><style><!--H1 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:22px;} H2 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:16px;} H3 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:14px;} BODY {font-family:Tahoma,Arial,sans-serif;color:black;background-color:white;} B {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;} P {font-family:Tahoma,Arial,sans-serif;background:white;color:black;font-size:12px;}A {color : black;}A.name {color : black;}HR {color : #525D76;}--></style> </head><body><h1>HTTP Status 500 - Servlet execution threw an exception</h1><HR size="1" noshade="noshade"><p><b>type</b> Exception report</p><p><b>message</b> <u>Servlet execution threw an exception</u></p><p><b>description</b> <u>The server encountered an internal error that prevented it from fulfilling this request.</u></p><p><b>exception</b> <pre>javax.servlet.ServletException: Servlet execution threw an exception
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
</pre></p><p><b>root cause</b> <pre>java.lang.NoClassDefFoundError: Could not initialize class org.apache.jena.riot.system.RiotLib
	org.apache.jena.riot.RiotReader.createParserTurtle(RiotReader.java:344)
	org.apache.jena.riot.RiotReader.createParser(RiotReader.java:173)
	org.apache.jena.riot.RiotReader.createParser(RiotReader.java:141)
	org.apache.jena.riot.RDFParserRegistry$ReaderRIOTLang.read(RDFParserRegistry.java:180)
	org.apache.jena.riot.RDFDataMgr.process(RDFDataMgr.java:906)
	org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:257)
	org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:243)
	org.apache.jena.riot.adapters.RDFReaderRIOT.read(RDFReaderRIOT.java:70)
	com.hp.hpl.jena.rdf.model.impl.ModelCom.read(ModelCom.java:226)
	org.dspace.rdf.conversion.SimpleDSORelationsConverterPlugin.getPrefixes(SimpleDSORelationsConverterPlugin.java:86)
	org.dspace.rdf.conversion.SimpleDSORelationsConverterPlugin.convertItem(SimpleDSORelationsConverterPlugin.java:454)
	org.dspace.rdf.conversion.SimpleDSORelationsConverterPlugin.convert(SimpleDSORelationsConverterPlugin.java:130)
	org.dspace.rdf.conversion.RDFConverterImpl.convert(RDFConverterImpl.java:78)
	org.dspace.rdf.RDFUtil.convert(RDFUtil.java:203)
	org.dspace.rdf.RDFUtil.convertAndStore(RDFUtil.java:239)
	org.dspace.rdf.RDFConsumer.convert(RDFConsumer.java:387)
	org.dspace.rdf.RDFConsumer.end(RDFConsumer.java:347)
	org.dspace.event.BasicDispatcher.dispatch(BasicDispatcher.java:149)
	org.dspace.core.Context.dispatchEvents(Context.java:455)
	org.dspace.core.Context.commit(Context.java:424)
	org.dspace.core.Context.complete(Context.java:380)
	org.dspace.sword2.SwordContext.commit(SwordContext.java:172)
	org.dspace.sword2.CollectionDepositManagerDSpace.createNew(CollectionDepositManagerDSpace.java:170)
	org.swordapp.server.CollectionAPI.post(CollectionAPI.java:165)
	org.swordapp.server.servlets.CollectionServletDefault.doPost(CollectionServletDefault.java:48)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
</pre></p><p><b>note</b> <u>The full stack trace of the root cause is available in the Apache Tomcat/7.0.68 (Ubuntu) logs.</u></p><HR size="1" noshade="noshade"><h3>Apache Tomcat/7.0.68 (Ubuntu)</h3></body></html>