Hi,
I am using components over struts on iAS v 6.0 sp2. I am getting a null
pointer exception error while overriding a parameter in an instance. If I
don't override and use the instance as is everything work fine. Did anyone
else get this error? Thanks for any help/leads.
Vijay
This is my instance definition in componentInstances.xml
<!-- Instance description -->
<instance name="classicPage" path="/layout/ddtsClassicLayout.jsp">
<put name="title" value="The DDTS Application" />
<put name="header" value="/common/header.jsp" />
<put name="footer" value="/common/footer.jsp" />
<put name="navigation" value="/common/navigation.jsp" />
<put name="body" value="/startPageBody.jsp" />
</instance>
And this is how I am overiding the body parameter.
<%@ taglib uri="/WEB-INF/components.tld" prefix="comp" %>
<comp:insert instance="classicPage" flush="true" />
<comp:put name="body" value="mainPageBody.jsp" />
</comp:insert>
And this is the layout page
<%@ page language="java" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
<%@ taglib uri="/WEB-INF/components.tld" prefix="comp" %>
<%-- Layout component
parameters : title, header, menu, body, footer
--%>
<html:html locale="<%= true %>">
<head>
<link rel=stylesheet
href="<%=request.getContextPath()%>/layout/stylesheet.css" type="text/css">
<title><comp:getAttribute name="title"/></title>
<html:base/>
</head>
<body bgcolor="#ffffff" text="#000000" link="#023264" alink="#023264"
vlink="#023264">
<logic:notPresent name="org.apache.struts.action.MESSAGE"
scope="application">
<font color="red">
ERROR: Application resources not loaded -- check servlet container
logs for error messages.
</font>
</logic:notPresent>
<table border="0" width="100%" cellspacing="1" CELLPADDING="0" HSPACE="0"
VSPACE="0">
<tr>
<td colspan="2"><comp:include attribute="header" /></td>
</tr>
<tr>
<td width="120" valign="top">
<comp:include attribute='navigation'/>
</td>
<td valign="top" align="left">
<comp:include attribute='body' />
</td>
</tr>
<tr>
<td colspan="2">
<hr>
</td>
</tr>
<tr>
<td colspan="2">
<comp:include attribute="footer" />
</td>
</tr>
</table>
</body>
</html:html>
This is the nullpointer error log
session GXLiteSessionID-7637684474562691762
[23/Apr/2001 18:25:49:4] info: --------------------------------------
[23/Apr/2001 18:25:50:8] info: --------------------------------------
[23/Apr/2001 18:25:51:0] info: jsp.APPS.ddts.mainPageContainer: init
[23/Apr/2001 18:25:51:2] info: --------------------------------------
java.lang.NullPointerException
at
s1.struts.taglib.component.PutAttributeTag.putValueInTagParent(PutAtt
ributeTag.java:342)
at
s1.struts.taglib.component.PutAttributeTag.doEndTag(PutAttributeTag.j
ava:327)
at
jsp.APPS.ddts.mainPageContainer._jspService(mainPageContainer.java:79
)
at
jsp.APPS.ddts.mainPageContainer.service(mainPageContainer.java:35)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
com.netscape.server.servlet.servletrunner.ServletInfo.service(Unknown
Source)
at
com.netscape.server.servlet.servletrunner.ServletRunner.callJSP(Unkno
wn Source)
at
com.netscape.server.servlet.platformhttp.PlatformHttpServletResponse.
callJspCompiler(Unknown Source)
at
com.netscape.server.servlet.platformhttp.PlatformHttpServletResponse.
callUri(Unknown Source)
at
com.netscape.server.servlet.platformhttp.PlatformHttpServletResponse.
callUriRestrictOutput(Unknown Source)
at
com.netscape.server.servlet.platformhttp.PlatformRequestDispatcher.fo
rward(Unknown Source)
at
s1.struts.component.ActionComponentServlet.processForward(ActionCompo
nentServlet.java:217)
at
s1.struts.component.ActionComponentServlet.processActionForward(Actio
nComponentServlet.java:93)
at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:156
4)
at
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:509)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:772)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
com.netscape.server.servlet.servletrunner.ServletInfo.service(Unknown
Source)
at
com.netscape.server.servlet.servletrunner.ServletRunner.execute(Unkno
wn Source)
at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
at com.kivasoft.thread.ThreadBasic.run(Native Method)
at java.lang.Thread.run(Thread.java:479)
java.lang.NullPointerException
at
s1.struts.taglib.component.PutAttributeTag.putValueInTagParent(PutAtt
ributeTag.java:342)
at
s1.struts.taglib.component.PutAttributeTag.doEndTag(PutAttributeTag.j
ava:327)
at
jsp.APPS.ddts.mainPageContainer._jspService(mainPageContainer.java:79
)
at
jsp.APPS.ddts.mainPageContainer.service(mainPageContainer.java:35)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
com.netscape.server.servlet.servletrunner.ServletInfo.service(Unknown
Source)
at
com.netscape.server.servlet.servletrunner.ServletRunner.callJSP(Unkno
wn Source)
at
com.netscape.server.servlet.platformhttp.PlatformHttpServletResponse.
callJspCompiler(Unknown Source)
at
com.netscape.server.servlet.platformhttp.PlatformHttpServletResponse.
callUri(Unknown Source)
at
com.netscape.server.servlet.platformhttp.PlatformHttpServletResponse.
callUriRestrictOutput(Unknown Source)
at
com.netscape.server.servlet.platformhttp.PlatformRequestDispatcher.fo
rward(Unknown Source)
at
s1.struts.component.ActionComponentServlet.processForward(ActionCompo
nentServlet.java:217)
at
s1.struts.component.ActionComponentServlet.processActionForward(Actio
nComponentServlet.java:93)
at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:156
4)
at
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:509)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:772)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:865)
at
com.netscape.server.servlet.servletrunner.ServletInfo.service(Unknown
Source)
at
com.netscape.server.servlet.servletrunner.ServletRunner.execute(Unkno
wn Source)
at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
at com.kivasoft.applogic.AppLogic.execute(Unknown Source)
at com.kivasoft.thread.ThreadBasic.run(Native Method)
at java.lang.Thread.run(Thread.java:479)
