Thanks Duane.
I did some more research and found out that oracle "xmlparsev2.jar" is
causing the issue. In the application ear directory with in WEB-INF/lib
we have two directories apache and oracle. The "xmlparserv2.jar" located
under oracle directory is trying to parse struts-config.xml and failing.
If we rename this file everything seems to be loaded and working fine
but we need this file for other functionality. From what I understand we
don't have any control over the sequence of jar files to load if they
are loaded from WEB-INF/lib directory. Is there any other alternative
way to set the sequence? Sorry this might be websphere specific question
and wrong user list but trying to see if I get any help.
Thanks,
Chandra.
-----Original Message-----
From: Duane Rosengartner [mailto:[EMAIL PROTECTED]
Sent: Tuesday, June 13, 2006 6:31 AM
To: Adari, Chandra
Cc: Struts Users Mailing List
Subject: RE: Problem loading/invoking struts app
The following technotes address the classloader issue and give detailed
instructions on how to override a WebSphere included file such as JDOM:
How to use the latest JDOM jar
http://www-1.ibm.com/support/docview.wss?uid=swg21222645
Best Practice for Using Common Application Files
http://www-1.ibm.com/support/docview.wss?uid=swg27006159
Other Websphere resources I've collected in notes:
WebSphere Application Server v6.0 InfoCenter - Product Documentation
http://publib.boulder.ibm.com/infocenter/wasinfo/v6r0/index.jsp
Rational Web Developer v6.0 InfoCenter - Product Documentation
http://publib.boulder.ibm.com/infocenter/rtnl0600/index.jsp?rcss=rtlrwdw
s
WebSphere Application Server Pre-reqs - List of all supported hardware
and software
http://www-306.ibm.com/software/webservers/appserv/doc/latest/prereq.htm
l
WebSphere Application Server developerWorks - Latest technical articles,
product links, tutorials, etc.
http://www-128.ibm.com/developerworks/websphere/zones/was/
IBM Press & IBM Redbooks
WebSphere Application Server V6 System Management & Configuration
Handbook (sg24-6451)
http://www.redbooks.ibm.com/abstracts/sg246451.html?Open
Ch.5 covers the Administrative Console
Ch. 14 covers Class Loaders
Ch. 16.5 covers Updating Applications (e.g. full_app,
single-file, single-module, partial_app, etc.)
WebSphere Application Server - Express V6 Developers Guide and
Development Examples (sg24-6500)
http://www.redbooks.ibm.com/abstracts/sg246500.html?Open
IBM(r) WebSphere(r): Deployment and Advanced Configuration (ISBN:
0131468626)
http://www.ibmpressbooks.com/bookstore/product.asp?isbn=0131468626&rl=1
Migrating Applications from WebLogic, JBoss and Tomcat to WebSphere V6
(sg24-6690)
http://www.redbooks.ibm.com/abstracts/sg246690.html?Open
Duane
-----Original Message-----
From: Adari, Chandra [mailto:[EMAIL PROTECTED]
Sent: Monday, June 12, 2006 6:37 PM
To: Duane Rosengartner
Subject: RE: Problem loading/invoking struts app
Can you please send me the article you are talking about from IBM.
Thanks,
Chandra.
-----Original Message-----
From: Duane Rosengartner [mailto:[EMAIL PROTECTED]
Sent: Monday, June 12, 2006 2:11 PM
To: Struts Users Mailing List
Subject: RE: Problem loading/invoking struts app
It appears your classloader is picking up the wrong jar. If this is
websphere 6, it comes with a jdom.jar that has given us problems similar
to yours. Attempt to use the parent-first parent last setting; match
with your working environment. It should be under the server(or node)
properties. If this does not work, there is an article on ibm.com that I
can try to find for you, a workaround for this issue.
Duane
-----Original Message-----
From: Adari, Chandra [mailto:[EMAIL PROTECTED]
Sent: Monday, June 12, 2006 4:00 PM
To: Struts Users Mailing List
Subject: Problem loading/invoking struts app
I am getting the following error during run time (ERROR Stack during
Runtime) when I invoke the Login.do. Please find the error stack down
below. I tried to put some debug statements and what I found was "module
config" is coming "null". I tried the same exact ear on a different
machine and it works just fine(included the debug messages as well). I
don't do any custom configuration to the app server so I am not sure
what the difference is.
DEBUG STATEMENT from a non-working machine :
[6/12/06 18:32:50:715 GMT] 00000055 SystemOut O Page
/Login.do?from=index
[6/12/06 18:32:50:715 GMT] 00000055 SystemOut O module config null
DEBUG STATEMENT from a working machine :
[6/4/06 15:46:24:138 PDT] 000000f3 SystemOut O Page
/Login.do?from=index
[6/4/06 15:46:24:138 PDT] 000000f3 SystemOut O module config
[EMAIL PROTECTED]
ERROR Stack during app server start up from non-working machine :
[6/4/06 8:27:15:492 GMT] 0000000a Digester E
org.apache.commons.digester.Digester getParser Digester.getParser:
org.xml.sax.SAXNotRecognizedException:
http://apache.org/xml/features/validation/dynamic
at
oracle.xml.jaxp.JXSAXParserFactory.setFeature(JXSAXParserFactory.java:12
8)
at
org.apache.commons.digester.parser.XercesParser.configureXerces(XercesPa
rser.java:185)
at
org.apache.commons.digester.parser.XercesParser.newSAXParser(XercesParse
r.java:138)
at
org.apache.commons.digester.ParserFeatureSetterFactory.newSAXParser(Pars
erFeatureSetterFactory.java:73)
at
org.apache.commons.digester.Digester.getParser(Digester.java:682)
at
org.apache.commons.digester.Digester.getXMLReader(Digester.java:891)
at
org.apache.commons.digester.Digester.parse(Digester.java:1572)
at
org.apache.struts.action.ActionServlet.parseModuleConfigFile(ActionServl
et.java:708)
at
org.apache.struts.action.ActionServlet.initModuleConfig(ActionServlet.ja
va:670)
at
org.apache.struts.action.ActionServlet.init(ActionServlet.java:329)
at javax.servlet.GenericServlet.init(GenericServlet.java:256)
at
com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:
274)
at
com.ibm.ws.webcontainer.servlet.ServletWrapper.initialize(ServletWrapper
.java:1398)
at
com.ibm.wsspi.webcontainer.extension.WebExtensionProcessor.createServlet
Wrapper(WebExtensionProcessor.java:86)
at
com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:788)
at
com.ibm.ws.webcontainer.webapp.WebApp.initializeTargetMappings(WebApp.ja
va:515)
at
com.ibm.ws.webcontainer.webapp.WebApp.initialize(WebApp.java:404)
at
com.ibm.ws.webcontainer.webapp.WebGroup.addWebApplication(WebGroup.java:
115)
at
com.ibm.ws.webcontainer.VirtualHost.addWebApplication(VirtualHost.java:1
28)
at
com.ibm.ws.webcontainer.WebContainer.addWebApp(WebContainer.java:924)
at
com.ibm.ws.webcontainer.WebContainer.addWebApplication(WebContainer.java
:877)
ERROR Stack during Run time from non-working machine :
"[6/12/06 18:32:50:717 GMT] 00000055 ServletWrappe E SRVE0068E: Could
not invoke the service() method on servlet /index.jsp. Exception thrown
: java.lang.NullPointerException
at org.apache.struts.taglib.TagUtils.pageURL(TagUtils.java:1118)
at
org.apache.struts.taglib.TagUtils.computeURLWithCharEncoding(TagUtils.ja
va:466)
at
org.apache.struts.taglib.TagUtils.computeURLWithCharEncoding(TagUtils.ja
va:329)
at
org.apache.struts.taglib.logic.RedirectTag.generateRedirectURL(RedirectT
ag.java:296)
at
org.apache.struts.taglib.logic.RedirectTag.doEndTag(RedirectTag.java:270
)
at
com.ibm._jsp._index._jspx_meth_logic_redirect_0(_index.java:101)
at com.ibm._jsp._index._jspService(_index.java:75)
at
com.ibm.ws.jsp.runtime.HttpJspBase.service(HttpJspBase.java:91)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
at
com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.ja
va:1282)
at
com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrap
per.java:673)
at
com.ibm.wsspi.webcontainer.servlet.GenericServletWrapper.handleRequest(G
enericServletWrapper.java:117)
at
com.ibm.ws.jsp.webcontainerext.JSPExtensionServletWrapper.handleRequest(
JSPExtensionServletWrapper.java:178)
at
com.ibm.ws.jsp.webcontainerext.JSPExtensionProcessor.handleRequest(JSPEx
tensionProcessor.java:252)
at
com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppReq
uestDispatcher.java:322)
at
com.ibm.ws.webcontainer.extension.DefaultExtensionProcessor.handleReques
t(DefaultExtensionProcessor.java:482)
at
com.ibm.ws.webcontainer.webapp.WebApp.handleRequest(WebApp.java:2965)
at
com.ibm.ws.webcontainer.webapp.WebGroup.handleRequest(WebGroup.java:221)
at
com.ibm.ws.webcontainer.VirtualHost.handleRequest(VirtualHost.java:210)
at
com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:193
1)
at
com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:8
4)
at
com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscriminatio
n(HttpInboundLink.java:472)
at
com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformatio
n(HttpInboundLink.java:411)
at
com.ibm.ws.http.channel.inbound.impl.HttpICLReadCallback.complete(HttpIC
LReadCallback.java:101)
at
com.ibm.ws.tcp.channel.impl.WorkQueueManager.requestComplete(WorkQueueMa
nager.java:566)
at
com.ibm.ws.tcp.channel.impl.WorkQueueManager.attemptIO(WorkQueueManager.
java:619)
at
com.ibm.ws.tcp.channel.impl.WorkQueueManager.workerRun(WorkQueueManager.
java:952)
at
com.ibm.ws.tcp.channel.impl.WorkQueueManager$Worker.run(WorkQueueManager
.java:1039)
at
com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java(Compiled Code))"
Any help is greatly appreciated.
Chandra.
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confidential and/or privileged material. Any review, retransmission,
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this information by persons or entities other than the intended
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