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    Thrown when an application is trying to use or access an object whose reference equals to null. You are probably trying to use a reference that points to no location in memory as though it were referencing an object.

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java.lang.NullPointerException: 	at java.util.Hashtable.put(Hashtable.java:394)	at oracle.apps.fnd.framework.webui.OAPageContextImpl.putSessionValue(OAPageContextImpl.java:1449)	at oracle.apps.fnd.wf.worklist.webui.NtfUtil.getOrigSysInfo(NtfUtil.java:1801)	at oracle.apps.fnd.wf.worklist.webui.NtfWorklistCO.processRequest(NtfWorklistCO.java:336)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:600)	at oracle.apps.fnd.framework.webui.OAWebBeanTableHelper.processRequest(OAWebBeanTableHelper.java:2144)	at oracle.apps.fnd.framework.webui.beans.table.OATableBean.processRequest(OATableBean.java:1035)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:968)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:935)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:659)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:252)	at oracle.apps.fnd.framework.webui.beans.layout.OAStackLayoutBean.processRequest(OAStackLayoutBean.java:350)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:968)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:935)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:659)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:252)	at oracle.apps.fnd.framework.webui.beans.layout.OAStackLayoutBean.processRequest(OAStackLayoutBean.java:350)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:968)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:935)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:659)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:252)	at oracle.apps.fnd.framework.webui.beans.layout.OAStackLayoutBean.processRequest(OAStackLayoutBean.java:350)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:968)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:935)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:659)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:252)	at oracle.apps.fnd.framework.webui.beans.layout.OAHeaderBean.processRequest(OAHeaderBean.java:391)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:968)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:935)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:659)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:252)	at oracle.apps.fnd.framework.webui.beans.layout.OACellFormatBean.processRequest(OACellFormatBean.java:411)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:968)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:935)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:659)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:252)	at oracle.apps.fnd.framework.webui.beans.layout.OARowLayoutBean.processRequest(OARowLayoutBean.java:347)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:968)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:935)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:659)	at oracle.apps.fnd.framework.webui.OAFlexibleContentHelper.processRequest(OAFlexibleContentHelper.java:504)	at oracle.apps.fnd.framework.webui.beans.OAFlexibleContentBean.processRequest(OAFlexibleContentBean.java:356)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:968)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:935)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:659)	at oracle.apps.fnd.framework.webui.beans.layout.OAFlexibleCellLayoutBean.processRequest(OAFlexibleCellLayoutBean.java:359)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:968)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:935)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:659)	at oracle.apps.fnd.framework.webui.beans.layout.OAFlexibleRowLayoutBean.processRequest(OAFlexibleRowLayoutBean.java:358)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:968)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:935)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:659)	at oracle.apps.fnd.framework.webui.beans.layout.OAFlexibleCellLayoutBean.processRequest(OAFlexibleCellLayoutBean.java:359)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:968)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:935)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:659)	at oracle.apps.fnd.framework.webui.beans.layout.OAFlexibleRowLayoutBean.processRequest(OAFlexibleRowLayoutBean.java:358)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:968)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:935)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:659)	at oracle.apps.fnd.framework.webui.beans.layout.OAFlexibleLayoutBean.processRequest(OAFlexibleLayoutBean.java:357)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:968)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:935)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:659)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:252)	at oracle.apps.fnd.framework.webui.beans.layout.OAStackLayoutBean.processRequest(OAStackLayoutBean.java:350)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:968)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:935)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:659)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:252)	at oracle.apps.fnd.framework.webui.OAPageLayoutHelper.processRequest(OAPageLayoutHelper.java:1182)	at oracle.apps.fnd.framework.webui.beans.layout.OAPageLayoutBean.processRequest(OAPageLayoutBean.java:1569)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:968)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:935)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:659)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:252)	at oracle.apps.fnd.framework.webui.beans.form.OAFormBean.processRequest(OAFormBean.java:385)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:968)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequestChildren(OAWebBeanHelper.java:935)	at oracle.apps.fnd.framework.webui.OAWebBeanHelper.processRequest(OAWebBeanHelper.java:659)	at oracle.apps.fnd.framework.webui.OAWebBeanContainerHelper.processRequest(OAWebBeanContainerHelper.java:252)	at oracle.apps.fnd.framework.webui.beans.OABodyBean.processRequest(OABodyBean.java:353)	at oracle.apps.fnd.framework.webui.OAPageBean.processRequest(OAPageBean.java:2607)	at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:1940)	at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:543)	at oracle.apps.fnd.framework.webui.OAPageBean.preparePage(OAPageBean.java:431)	at _OA._jspService(_OA.java:212)	at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:59)	at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:379)	at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:594)	at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:518)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)	at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:713)	at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)	at com.evermind.server.http.ServletRequestDispatcher.unprivileged_forward(ServletRequestDispatcher.java:259)	at com.evermind.server.http.ServletRequestDispatcher.access$100(ServletRequestDispatcher.java:51)	at com.evermind.server.http.ServletRequestDispatcher$2.oc4jRun(ServletRequestDispatcher.java:193)	at oracle.oc4j.security.OC4JSecurity.doPrivileged(OC4JSecurity.java:284)	at com.evermind.server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher.java:198)	at com.evermind.server.http.EvermindPageContext.forward(EvermindPageContext.java:395)	at _OA._jspService(_OA.java:221)	at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:59)	at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:379)	at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:594)	at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:518)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)	at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:713)	at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)	at com.evermind.server.http.ServletRequestDispatcher.unprivileged_forward(ServletRequestDispatcher.java:259)	at com.evermind.server.http.ServletRequestDispatcher.access$100(ServletRequestDispatcher.java:51)	at com.evermind.server.http.ServletRequestDispatcher$2.oc4jRun(ServletRequestDispatcher.java:193)	at oracle.oc4j.security.OC4JSecurity.doPrivileged(OC4JSecurity.java:284)	at com.evermind.server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher.java:198)	at com.evermind.server.http.EvermindPageContext.forward(EvermindPageContext.java:395)	at _OA._jspService(_OA.java:221)	at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:59)	at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:379)	at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:594)	at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:518)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)	at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:713)	at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)	at com.evermind.server.http.ServletRequestDispatcher.unprivileged_forward(ServletRequestDispatcher.java:259)	at com.evermind.server.http.ServletRequestDispatcher.access$100(ServletRequestDispatcher.java:51)	at com.evermind.server.http.ServletRequestDispatcher$2.oc4jRun(ServletRequestDispatcher.java:193)	at oracle.oc4j.security.OC4JSecurity.doPrivileged(OC4JSecurity.java:284)	at com.evermind.server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher.java:198)	at com.evermind.server.http.EvermindPageContext.forward(EvermindPageContext.java:395)	at _OA._jspService(_OA.java:221)	at com.orionserver.http.OrionHttpJspPage.service(OrionHttpJspPage.java:59)	at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:379)	at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:594)	at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:518)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)	at com.evermind.server.http.ResourceFilterChain.doFilter(ResourceFilterChain.java:64)	at oracle.apps.jtf.base.session.ReleaseResFilter.doFilter(ReleaseResFilter.java:26)	at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:15)	at oracle.apps.fnd.security.AppsServletFilter.doFilter(AppsServletFilter.java:318)	at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:621)	at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)	at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:871)	at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453)	at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:313)	at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:199)	at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)	at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)	at java.lang.Thread.run(Thread.java:619)