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From Hermann X Lau <hermann.x....@jpmchase.com>
Subject 'Parameter name == null' exception
Date Tue, 28 Apr 2009 15:37:33 GMT
I am receiving this exception in SystemOut.log from my struts portlet.  Can anyone explain
this to me?

[4/28/09 11:15:54:459 EDT] 0000005d WpRequestProc E com.ibm.portal.struts.portlet.WpRequestProcessor
processException Root cause: java.lang.IllegalArgumentException: Parameter name == null
  at com.ibm.ws.portletcontainer.core.impl.PortletRequestImpl.getParameterValues(PortletRequestImpl.java:546)
  at javax.portlet.filter.PortletRequestWrapper.getParameterValues(PortletRequestWrapper.java:134)
  at com.ibm.wps.struts.pluto.base.WpsStrutsPortletRequestWrapper.getParameterValues(WpsStrutsPortletRequestWrapper.java:224)
....
[4/28/09 11:15:54:480 EDT] 0000005d ServletWrappe E   SRVE0068E: Uncaught exception thrown
in one of the service methods of the servlet: /welcomeForward.jsp. Exception throw
n : javax.servlet.ServletException: Exception forwarding for name welcomeDispatch: javax.servlet.ServletException:
Parameter name == null
        at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:660)
        at com.ibm._jsp._welcomeForward._jspService(_welcomeForward.java:99)
        at com.ibm.ws.jsp.runtime.HttpJspBase.service(HttpJspBase.java:87)

Here is my struts-config:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration
1.1//EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
<struts-config>

      <!-- Data Sources -->
      <data-sources>
      </data-sources>

      <!-- Form Beans -->
      <form-beans>
            <form-bean name="manageFormBean"
                  type="com.chase.adf.myreports.forms.ManageFormBean">
            </form-bean>
            <form-bean name="viewFormBean" type="com.chase.adf.myreports.forms.ViewFormBean">
            </form-bean>
      </form-beans>

      <!-- Global Exceptions -->
      <global-exceptions>
      </global-exceptions>

      <!-- Global Forwards -->
      <global-forwards>
            <forward name="welcomeDispatch" path="/welcomeDispatch.do" />
            <forward name="reports" path="/reports.jsp" />
      </global-forwards>

      <!-- Action Mappings -->
      <action-mappings>
            <action path="/getReportsView"
                  type="com.chase.adf.myreports.actions.GetReportsViewAction" name="viewFormBean"
                  scope="session">
                  <forward contextRelative="false" name="failure" path="/failure.jsp">
                  </forward>
                  <forward contextRelative="false" name="success" path="/reports.jsp">
                  </forward>
            </action>
            <action path="/saveFavorites"
                  type="com.chase.adf.myreports.actions.SaveFavoritesAction" name="manageFormBean"
                  scope="request">
                  <forward contextRelative="false" name="failure" path="/failure.jsp">
                  </forward>
                  <forward contextRelative="false" name="success" path="/messages.jsp">
                  </forward>
            </action>
            <action path="/getReportsManage"
                  type="com.chase.adf.myreports.actions.GetReportsManageAction" name="manageFormBean"
                  scope="request">
                  <forward contextRelative="false" name="success" path="/manage.jsp">
                  </forward>
                  <forward contextRelative="false" name="failure" path="/failure.jsp">
                  </forward>
            </action>
            <action path="/welcomeDispatch"
                  type="com.chase.adf.myreports.actions.WelcomeDispatchAction">
                  <forward contextRelative="false" name="failure" path="/failure.jsp">
                  </forward>
                  <forward contextRelative="false" name="manage" path="/getReportsManage.do">
                  </forward>
                  <forward contextRelative="false" name="view" path="/getReportsView.do">
                  </forward>
                  <forward contextRelative="false" name="public" path="/getReportsView.do">
                  </forward>
            </action>
      </action-mappings>
      <!--Controller-->
      <controller processorClass="com.ibm.portal.struts.portlet.WpRequestProcessor">
      </controller>

      <!-- Message Resources -->
      <message-resources parameter="ApplicationResources" />

</struts-config>


welcomeForward.jsp:
<%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic" %>
<%@ taglib uri="http://java.sun.com/portlet" prefix="portletAPI" %>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
      pageEncoding="ISO-8859-1"%>

<portletAPI:defineObjects />
<logic:forward name="welcomeDispatch"/>




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