This subject is addressed by Arron in an earlier message (http://marc.theaimsgroup.com/?l=struts-user&m=103848775020380&w=2).
Sri -----Original Message----- From: Wes Rood [mailto:[EMAIL PROTECTED] Sent: Friday, July 11, 2003 12:15 PM To: [EMAIL PROTECTED] Subject: need help with nested:iterate tag -- NullPointerException Hi I was trying to convert a logic:iterate into a nested:iterate and I'm getting a NullPointerException. First off, the Action is adding a List to the request like this: request.setAttribute("courseProviderList", theList); and the JSP is successfully iterating through the objects using logic:iterate: <logic:iterate id="element" name="courseProviderList" type="com.CourseProvider"> <bean:write name="element" property="oid" /> ... etc </logic:iterate> But when I tried nested:iterate: <nested:iterate name="courseProviderList" type="com.CourseProvider"> <nested:write property="oid"/> </nested:iterate> I get the following exception: java.lang.NullPointerException at java.util.Hashtable.put(Hashtable.java:380) at org.apache.jasper.runtime.PageContextImpl.setAttribute(PageContextImp l.java:234) at org.apache.struts.taglib.logic.IterateTag.doStartTag(IterateTag.java: 367) at org.apache.struts.taglib.nested.logic.NestedIterateTag.doStartTag(Nes tedIterateTag.java:116) at org.apache.jsp.listCourseProviders_jsp._jspService(listCourseProvider s_jsp.java:88) ... etc ----------------------- I can get it to work if I define a FormBean, and use it as follows: ((ListCourseProvidersForm)form).setCourseProviders(theList); with: <nested:iterate name="ListCourseProvidersForm" property="courseProviders"> <nested:write property="oid" /> .. etc </nested:iterate> But shouldn't it also work when the collection is directly an attribute of the request object? Thanks, Wes --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
