Dear sir,<br><br>When i trying to add an item to Dspace it displays "internal server error"<br><br>the following are the log file entries, please help me..<br><br clear="all">2007-10-17 11:37:05,544 WARN org.dspace.app.webui.servlet.InternalErrorServlet
@ :session_id=8ADC30C0C3D14023005F9B56D1E4DAAD:internal_error:-- URL Was: <a href="http://10.1.1.5:8080/dspace/submit">http://10.1.1.5:8080/dspace/submit</a><br>-- Method: POST<br>-- Parameters were:<br>-- workspace_item_id: "603"
<br>-- submit_grant: "I Grant the License"<br>-- step: "11"<br><br>java.lang.NullPointerException<br> at java.util.Hashtable.put(Hashtable.java:394)<br> at org.dspace.core.Email.send(Email.java:257)
<br> at org.dspace.workflow.WorkflowManager.notifyOfArchive(WorkflowManager.java:692)<br> at org.dspace.workflow.WorkflowManager.doState(WorkflowManager.java:609)<br> at org.dspace.workflow.WorkflowManager.doState
(WorkflowManager.java:582)<br> at org.dspace.workflow.WorkflowManager.doState(WorkflowManager.java:546)<br> at org.dspace.workflow.WorkflowManager.doState(WorkflowManager.java:506)<br> at org.dspace.workflow.WorkflowManager.start
(WorkflowManager.java:203)<br> at org.dspace.app.webui.servlet.SubmitServlet.processLicense(SubmitServlet.java:1621)<br> at org.dspace.app.webui.servlet.SubmitServlet.doDSPost(SubmitServlet.java:424)<br> at org.dspace.app.webui.servlet.DSpaceServlet.processRequest
(DSpaceServlet.java:147)<br> at org.dspace.app.webui.servlet.DSpaceServlet.doPost(DSpaceServlet.java:105)<br> at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)<br> at javax.servlet.http.HttpServlet.service
(HttpServlet.java:802)<br> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)<br> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java
:173)<br> at org.dspace.app.webui.filter.RegisteredOnlyFilter.doFilter(RegisteredOnlyFilter.java:98)<br> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)<br> at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)<br> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)<br> at org.apache.catalina.core.StandardValveContext.invokeNext
(StandardValveContext.java:104)<br> at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)<br> at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)<br>
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)<br> at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)<br> at org.apache.catalina.core.StandardPipeline.invoke
(StandardPipeline.java:520)<br> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)<br> at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)<br> at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)<br> at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)<br> at org.apache.catalina.core.StandardPipeline.invoke
(StandardPipeline.java:520)<br> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)<br> at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)<br>
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)<br> at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)<br> at org.apache.coyote.tomcat5.CoyoteAdapter.service(
CoyoteAdapter.java:160)<br> at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)<br> at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
<br> at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)<br> at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)<br> at java.lang.Thread.run(Thread.java
:619)<br>2007-10-17 11:37:05,547 WARN org.dspace.app.webui.util.UIUtil @ Unable to send email alert<br>java.lang.NullPointerException<br> at java.util.Hashtable.put(Hashtable.java:394)<br> at org.dspace.core.Email.send
(Email.java:257)<br> at org.dspace.app.webui.util.UIUtil.sendAlert(UIUtil.java:559)<br> at org.dspace.app.webui.servlet.InternalErrorServlet.doGet(InternalErrorServlet.java:86)<br> at org.dspace.app.webui.servlet.InternalErrorServlet.doPost
(InternalErrorServlet.java:94)<br> at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)<br> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)<br> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
(ApplicationFilterChain.java:252)<br> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)<br> at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java
:696)<br> at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:476)<br> at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:409)<br> at org.apache.catalina.core.ApplicationDispatcher.forward
(ApplicationDispatcher.java:312)<br> at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:396)<br> at org.apache.catalina.core.StandardHostValve.throwable(StandardHostValve.java:225)<br> at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:145)<br> at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)<br> at org.apache.catalina.valves.ErrorReportValve.invoke
(ErrorReportValve.java:118)<br> at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)<br> at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)<br> at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)<br> at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)<br> at org.apache.catalina.core.StandardPipeline.invoke
(StandardPipeline.java:520)<br> at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)<br> at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)<br> at org.apache.coyote.http11.Http11Processor.process
(Http11Processor.java:799)<br> at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)<br> at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java
:577)<br> at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)<br> at java.lang.Thread.run(Thread.java:619)<br>2007-10-17 11:37:30,806 INFO org.dspace.app.webui.servlet.LogoutServlet
@ shali@vidyaacademy.ac.in:session_id=8ADC30C0C3D14023005F9B56D1E4DAAD:ip_addr=10.1.1.1:logout:<br>-- <br>Shali.K.R<br>Asst.Librarian(Digital)<br>Vidya Academy of Science & Technology<br>Thrissur, Kerala.<br>Mob:9846303531