Hi,
I am facing problem with Nested Tags.
I have a method in ActionForm
private ArrayList mFormList = new ArrayList();
public Object[] getFormList() {
return mFormList.toArray();
}
public ArrayList getMyFormList() {
return mFormList
}
public setMyFormList(ArrayList pFormList) {
this.mFormList = pFormList
}
This ArrayList contian the ValueObjects.
I am getting the instance of ActionForm in another Action Class and setting
this variable (which is invoked before loading this page).
Code in Action class:
MyVO controlVO1 = new MyVO("600","10","100
O","10","1","2/5/1998","12/31/1111"," ");
MyVO controlVO1 = new MyVO("600","10","100
O","10","1","2/5/1998","12/31/1111"," ");
ArrayList alControl = new ArrayList();
TestForm testForm =
(TestForm)aRequest.getSession().getAttribute("testForm");
if(testForm == null) {
testForm = new TestForm();
}
testForm .setMyFormList(alControl)
====
JSP
-----
<nested:iterate name="formList" >
I am getting the follwoing exception.... any suggestions.....
Error Message:
Error Code: 500
Target Servlet: null
Error Stack:
java.lang.NullPointerException
at
org.apache.struts.taglib.nested.NestedPropertyHelper.getNestedProperty(Neste
dPropertyHelper.java:159)
at
org.apache.struts.taglib.nested.NestedPropertyHelper.getNestedProperty(Neste
dPropertyHelper.java:195)
at
org.apache.struts.taglib.nested.NestedPropertyHelper.setNestedProperties(Nes
tedPropertyHelper.java:242)
at
org.apache.struts.taglib.nested.logic.NestedIterateTag.doStartTag(NestedIter
ateTag.java:115)
at
wspr._wspr_0005fcorrespondence_0005fpage_jsp_7._jspService(_wspr_0005fcorres
pondence_0005fpage_jsp_7.java:113)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:142)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.jasper.runtime.JspServlet$JspServletWrapper.service(JspServlet.ja
va:300)
at
org.apache.jasper.runtime.JspServlet.serviceJspFile(JspServlet.java:430)
at org.apache.jasper.runtime.JspServlet.service(JspServlet.java:565)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
com.ibm.servlet.engine.webapp.StrictServletInstance.doService(ServletManager
.java:827)
at
com.ibm.servlet.engine.webapp.StrictLifecycleServlet._service(StrictLifecycl
eServlet.java:167)
at
com.ibm.servlet.engine.webapp.IdleServletState.service(StrictLifecycleServle
t.java:297)
at
com.ibm.servlet.engine.webapp.StrictLifecycleServlet.service(StrictLifecycle
Servlet.java:110)
at
com.ibm.servlet.engine.webapp.ServletInstance.service(ServletManager.java:47
2)
at
com.ibm.servlet.engine.webapp.ValidServletReferenceState.dispatch(ServletMan
ager.java:1012)
at
com.ibm.servlet.engine.webapp.ServletInstanceReference.dispatch(ServletManag
er.java:913)
at
com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.handleWebAppDispatch(W
ebAppRequestDispatcher.java:523)
at
com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.dispatch(WebAppRequest
Dispatcher.java:282)
at
com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.forward(WebAppRequestD
ispatcher.java:112)
at
org.apache.struts.action.ActionServlet.processActionForward(ActionServlet.ja
va:1759)
at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1596)
at com.vstl.wspr.WSPRActionServlet.process(WSPRActionServlet.java:49)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:492)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
com.ibm.servlet.engine.webapp.StrictServletInstance.doService(ServletManager
.java:827)
at
com.ibm.servlet.engine.webapp.StrictLifecycleServlet._service(StrictLifecycl
eServlet.java:167)
at
com.ibm.servlet.engine.webapp.IdleServletState.service(StrictLifecycleServle
t.java:297)
at
com.ibm.servlet.engine.webapp.StrictLifecycleServlet.service(StrictLifecycle
Servlet.java:110)
at
com.ibm.servlet.engine.webapp.ServletInstance.service(ServletManager.java:47
2)
at
com.ibm.servlet.engine.webapp.ValidServletReferenceState.dispatch(ServletMan
ager.java:1012)
at
com.ibm.servlet.engine.webapp.ServletInstanceReference.dispatch(ServletManag
er.java:913)
at
com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.handleWebAppDispatch(W
ebAppRequestDispatcher.java:523)
at
com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.dispatch(WebAppRequest
Dispatcher.java:282)
at
com.ibm.servlet.engine.webapp.WebAppRequestDispatcher.forward(WebAppRequestD
ispatcher.java:112)
at
com.ibm.servlet.engine.srt.WebAppInvoker.doForward(WebAppInvoker.java:91)
at
com.ibm.servlet.engine.srt.WebAppInvoker.handleInvocationHook(WebAppInvoker.
java:184)
at
com.ibm.servlet.engine.invocation.CachedInvocation.handleInvocation(CachedIn
vocation.java:67)
at
com.ibm.servlet.engine.invocation.CacheableInvocationContext.invoke(Cacheabl
eInvocationContext.java:106)
at
com.ibm.servlet.engine.srp.ServletRequestProcessor.dispatchByURI(ServletRequ
estProcessor.java:125)
at
com.ibm.servlet.engine.oselistener.OSEListenerDispatcher.service(OSEListener
.java:315)
at
com.ibm.servlet.engine.http11.HttpConnection.handleRequest(HttpConnection.ja
va:60)
at
com.ibm.ws.http.HttpConnection.readAndHandleRequest(HttpConnection.java:323)
at com.ibm.ws.http.HttpConnection.run(HttpConnection.java:252)
at com.ibm.ws.util.CachedThread.run(ThreadPool.java:122)
Thanks & Regards,
Ashok.D
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