I'm attempting to upgrade our DSpace 1.6.2 to 1.7.1, but I am getting an error 
after doing the 1.7.1 upgrade and starting Tomcat. The dspace.log has an error 
that looks like this:

=====================
2011-04-20 15:27:37,957 INFO  org.dspace.usage.LoggerUsageEventListener @ 
anonymous:session_id=D2B7C53C71F9D0B7ACC67850C132068A:ip_addr=10.10.32.23:view_item:handle=10267/7277
2011-04-20 15:27:37,963 ERROR 
org.dspace.statistics.SolrLoggerUsageEventListener @ Length Required

Length Required

request: http://dlynx.rhodes.edu/solr/statistics/update?wt=javabin&version=1
2011-04-20 15:27:37,963 INFO  org.dspace.app.webui.servlet.DSpaceServlet @ 
anonymous:session_id=D2B7C53C71F9D0B7ACC67850C132068A:ip_addr=10.10.32.23:view_item:handle=10267/7277
2011-04-20 15:27:37,966 WARN  org.dspace.app.webui.servlet.InternalErrorServlet 
@ :session_id=D2B7C53C71F9D0B7ACC67850C132068A:internal_error:-- URL Was: 
http://dlynx.rhodes.edu/jspui/handle/10267/7277
-- Method: GET
-- Parameters were:

java.lang.NullPointerException
        at 
org.dspace.app.webui.servlet.HandleServlet.displayItem(HandleServlet.java:342)
        at 
org.dspace.app.webui.servlet.HandleServlet.doDSGet(HandleServlet.java:169)
        at 
org.dspace.app.webui.servlet.DSpaceServlet.processRequest(DSpaceServlet.java:119)
        at 
org.dspace.app.webui.servlet.DSpaceServlet.doGet(DSpaceServlet.java:67)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
        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.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.coyote.http11.Http11Processor.process(Http11Processor.java:859)
        at 
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
        at 
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
        at java.lang.Thread.run(Thread.java:662)
=====================

I just did the upgrade from 1.5.2 to 1.6.2 yesterday and didn't have any 
problems. The handle server worked fine after that upgrade, but now it doesn't 
seem like it wasn't to resolve any IDs to display archived objects.

Note that I can authenticate to DSpace just fine and navigate the structure of 
the site, but I just can't view any objects, authenticated or not. It is like 
the handle server just isn't working, but it is running.

Any thoughts? I would appreciate any insight anyone has on this issue.

Thanks in advance for the help.

--
Stacy Pennington
Information Technology Services
Rhodes College
901-843-3968



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