Dear All,
I'm having trouble trying to harvest from a repository I'm working on. I am
receiving this error for all the metadataPrefix. Below is the error:
HTTP Status 500 -
com.lyncode.xoai.dataprovider.exceptions.WritingXmlException: Error trying
to output ''
type Exception report
message com.lyncode.xoai.dataprovider.exceptions.WritingXmlException: Error
trying to output ''
description The server encountered an internal error that prevented it from
fulfilling this request.
exception
java.io.IOException:
com.lyncode.xoai.dataprovider.exceptions.WritingXmlException: Error trying
to output ''
org.dspace.xoai.services.impl.cache.DSpaceXOAICacheService.store(DSpaceXOAICacheService.java:113)
org.dspace.xoai.controller.DSpaceOAIDataProvider.contextAction(DSpaceOAIDataProvider.java:104)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578)
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
root cause
com.lyncode.xoai.dataprovider.exceptions.WritingXmlException: Error trying
to output ''
com.lyncode.xoai.dataprovider.xml.EchoElement.write(EchoElement.java:58)
com.lyncode.xoai.dataprovider.xml.oaipmh.MetadataType.write(MetadataType.java:78)
com.lyncode.xoai.dataprovider.xml.oaipmh.RecordType.write(RecordType.java:130)
com.lyncode.xoai.dataprovider.xml.oaipmh.ListRecordsType.write(ListRecordsType.java:110)
com.lyncode.xoai.util.XmlIOUtils.writeElement(XmlIOUtils.java:20)
com.lyncode.xoai.dataprovider.xml.oaipmh.OAIPMHtype.write(OAIPMHtype.java:286)
com.lyncode.xoai.dataprovider.xml.oaipmh.OAIPMH.write(OAIPMH.java:44)
org.dspace.xoai.services.impl.cache.DSpaceXOAICacheService.store(DSpaceXOAICacheService.java:97)
org.dspace.xoai.controller.DSpaceOAIDataProvider.contextAction(DSpaceOAIDataProvider.java:104)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578)
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
root cause
com.ctc.wstx.exc.WstxEOFException: Unexpected EOF in prolog
at [row,col {unknown-source}]: [1,0]
com.ctc.wstx.sr.StreamScanner.throwUnexpectedEOF(StreamScanner.java:661)
com.ctc.wstx.sr.BasicStreamReader.handleEOF(BasicStreamReader.java:2134)
com.ctc.wstx.sr.BasicStreamReader.nextFromProlog(BasicStreamReader.java:2040)
com.ctc.wstx.sr.BasicStreamReader.next(BasicStreamReader.java:1069)
com.ctc.wstx.evt.WstxEventReader.nextEvent(WstxEventReader.java:196)
com.lyncode.xoai.dataprovider.xml.EchoElement.write(EchoElement.java:31)
com.lyncode.xoai.dataprovider.xml.oaipmh.MetadataType.write(MetadataType.java:78)
com.lyncode.xoai.dataprovider.xml.oaipmh.RecordType.write(RecordType.java:130)
com.lyncode.xoai.dataprovider.xml.oaipmh.ListRecordsType.write(ListRecordsType.java:110)
com.lyncode.xoai.util.XmlIOUtils.writeElement(XmlIOUtils.java:20)
com.lyncode.xoai.dataprovider.xml.oaipmh.OAIPMHtype.write(OAIPMHtype.java:286)
com.lyncode.xoai.dataprovider.xml.oaipmh.OAIPMH.write(OAIPMH.java:44)
org.dspace.xoai.services.impl.cache.DSpaceXOAICacheService.store(DSpaceXOAICacheService.java:97)
org.dspace.xoai.controller.DSpaceOAIDataProvider.contextAction(DSpaceOAIDataProvider.java:104)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
java.lang.reflect.Method.invoke(Unknown Source)
org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578)
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)
javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
note The full stack trace of the root cause is available in the Apache
Tomcat/7.0.39 logs.
Apache Tomcat/7.0.39
Please help on how to resolve this. Searching for this error in the mailing
list, I found DS-2386 but it is stated there that this was already fixed for
version 5.0. I am using version 5.2.
Thanks in advance,
euler
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