Hi Helix
Attached is the full stacktrace.
I didn't run a command. An Admin ran it from the Admin > Export Metadata link
Kevin Evans
Systems Developer,
Research & Collaborative Systems,
Enterprise Applications,
Room 911, 9th Floor, Laver Building,
University of Exeter,
Exeter,
Devon,
EX4 4QE
01392 725573
-----Original Message-----
From: ivan.ma...@gmail.com [mailto:ivan.ma...@gmail.com] On Behalf Of helix84
Sent: 01 August 2013 15:23
To: Evans, Kevin
Cc: dspace-tech@lists.sourceforge.net
Subject: Re: [Dspace-tech] java.lang.NullPointerException when exporting
metadata
On Thu, Aug 1, 2013 at 4:05 PM, Evans, Kevin <kevin.ev...@exeter.ac.uk> wrote:
> We are having an issue with some of our collections coming back with a
> java.lang.NullPointerException
Hi Kevin,
that is a generic exception, we can't help without the full stacktrace,
including the "Caused by:" lines.
Also, which command exactly did you run, including parameters?
Regards,
~~helix84
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org.apache.cocoon.ProcessingException: Failed to process reader
at <map:read type="MetadataExportReader"> -
file:///opt/dspace/webapps/xmlui/sitemap.xmap:375:71
at <map:match> - file:///opt/dspace/webapps/xmlui/sitemap.xmap:374:61
at
org.apache.cocoon.ProcessingException.throwLocated(ProcessingException.java:111)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.handleException(AbstractProcessingPipeline.java:927)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processReader(AbstractProcessingPipeline.java:659)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.process(AbstractProcessingPipeline.java:431)
at sun.reflect.GeneratedMethodAccessor100.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at $Proxy35.process(Unknown Source)
at
org.apache.cocoon.components.treeprocessor.sitemap.ReadNode.invoke(ReadNode.java:94)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:55)
at
org.apache.cocoon.components.treeprocessor.sitemap.MatchNode.invoke(MatchNode.java:87)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelineNode.invoke(PipelineNode.java:143)
at
org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNode.invokeNodes(AbstractParentProcessingNode.java:78)
at
org.apache.cocoon.components.treeprocessor.sitemap.PipelinesNode.invoke(PipelinesNode.java:81)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:239)
at
org.apache.cocoon.components.treeprocessor.ConcreteTreeProcessor.process(ConcreteTreeProcessor.java:171)
at
org.apache.cocoon.components.treeprocessor.TreeProcessor.process(TreeProcessor.java:247)
at
org.apache.cocoon.servlet.RequestProcessor.process(RequestProcessor.java:351)
at
org.apache.cocoon.servlet.RequestProcessor.service(RequestProcessor.java:169)
at
org.apache.cocoon.servlet.SitemapServlet.service(SitemapServlet.java:42)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at
org.apache.cocoon.servletservice.ServletServiceContext$PathDispatcher.forward(ServletServiceContext.java:468)
at
org.apache.cocoon.servletservice.ServletServiceContext$PathDispatcher.forward(ServletServiceContext.java:443)
at
org.apache.cocoon.servletservice.spring.ServletFactoryBean$ServiceInterceptor.invoke(ServletFactoryBean.java:264)
at
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at
org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
at $Proxy20.service(Unknown Source)
at
org.apache.cocoon.servletservice.DispatcherServlet.service(DispatcherServlet.java:106)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.dspace.app.xmlui.cocoon.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.dspace.app.xmlui.cocoon.DSpaceCocoonServletFilter.doFilter(DSpaceCocoonServletFilter.java:269)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.cocoon.servlet.multipart.MultipartFilter.doFilter(MultipartFilter.java:131)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServletFilter.java:78)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:776)
at
org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:705)
at
org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:898)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
at
org.dspace.app.xmlui.cocoon.MetadataExportReader.generate(MetadataExportReader.java:187)
at sun.reflect.GeneratedMethodAccessor131.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.cocoon.core.container.spring.avalon.PoolableProxyHandler.invoke(PoolableProxyHandler.java:71)
at $Proxy36.generate(Unknown Source)
at
org.apache.cocoon.components.pipeline.AbstractProcessingPipeline.processReader(AbstractProcessingPipeline.java:656)
... 55 more
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