Hello,
I'm experiencing some errors such as:
DSpace: Internal Server Error
my dspace is 4.0 with java 1.8
I attach the error stack :
Exception:
org.apache.jasper.JasperException: java.lang.NullPointerException
at
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWra
pper.java:549)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:4
70)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:305)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:210)
at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:210)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.
java:749)
at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDis
patcher.java:487)
at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatch
er.java:412)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher
.java:339)
at
org.dspace.app.webui.util.JSPManager.showJSP(JSPManager.java:60)
at
org.dspace.app.webui.discovery.DiscoverySearchRequestProcessor.doSimpleSearc
h(DiscoverySearchRequestProcessor.java:439)
at
org.dspace.app.webui.servlet.SimpleSearchServlet.doDSGet(SimpleSearchServlet
.java:63)
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:621)
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:305)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:210)
at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:210)
at
org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServ
letFilter.java:78)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:243)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:210)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:222)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:123)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase
.java:502)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171
)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100
)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:118)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:409)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Proce
ssor.java:1044)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(Abstrac
tProtocol.java:607)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:
313)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:11
42)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:6
17)
at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.NullPointerException
at
org.apache.jsp.search.discovery_jsp._jspService(discovery_jsp.java:1605)
at
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at
javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:4
32)
... 41 more
greetings
Gaetano
__________________________________________________
C.S.I. Universita' degli Studi di Salerno
Gaetano Rufino
Ufficio Sistemi Tecnologici
E-Mail: <mailto:gruf...@unisa.it> gruf...@unisa.it
Tel: +39 089 966 350 Fax: +39 089 966 368/346
Tel. HelpDesk: +39 089 966 400
__________________________________________________
“Lei disse: “Dimmi qualcosa di bello” Lui rispose: “(∂ + m) ψ = 0””
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