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    You try to parse a String that contains non-numeric characters to an int. The string must contain decimal characters only, optionally beginning with a + or - sign.

Solutions on the web

via Sakai JIRA by John H Parker G, 2 years ago
via Coderanch by Ranet Saed, 1 year ago
via Google Groups by mohamad, 9 months ago
via Coderanch by Ranet Saed, 1 year ago
java.lang.NumberFormatException: null at java.lang.Integer.parseInt(Integer.java:417) at java.lang.Integer.parseInt(Integer.java:499) at org.dspace.app.webui.components.RecentSubmissionsManager.getRecentSubmissions(RecentSubmissionsManager.java:76) at org.dspace.app.webui.components.RecentCommunitySubmissions.process(RecentCommunitySubmissions.java:48) at org.dspace.app.webui.servlet.HandleServlet.preProcessCommunityHome(HandleServlet.java:480) at org.dspace.app.webui.servlet.HandleServlet.communityHome(HandleServlet.java:438) at org.dspace.app.webui.servlet.HandleServlet.doDSGet(HandleServlet.java:250) 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:852) 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)