Hello -
We've been seeing the following exception intermittently in our test
environments. The user sees a blank screen. We have not been able to establish
a pattern. We're using Struts 1.1 with JDK1.4.204
####<Mar 16, 2005 5:59:23 PM EST> <Info> <HTTP>
<wmsccusotiswli1u.ca.cibcwm.com> <gowpo10cN1> <ExecuteThread: '3' for queue:
'weblogic.kernel.System'> <<anonymous>> <> <BEA-101047>
<[ServletContext(id=13205013,name=atm,context-path=/atm)] action: init>
####<Mar 16, 2005 5:59:46 PM EST> <Error> <HTTP>
<wmsccusotiswli1u.ca.cibcwm.com> <gowpo10cN1> <ExecuteThread: '10' for queue:
'weblogic.kernel.Default'> <<WLS Kernel>> <> <BEA-101020>
<[ServletContext(id=746976,name=otis-common-gow-war,context-path=)] Servlet
failed with Exception
java.lang.NullPointerException
at
org.apache.struts.tiles.definition.ComponentDefinitionsFactoryWrapper.getDefinition(ComponentDefinitionsFactoryWrapper.java:124)
at
org.apache.struts.tiles.TilesRequestProcessor.processTilesDefinition(TilesRequestProcessor.java:180)
at
com.cibcwm.go.otis.common.workbench.WorkbenchClientTilesRequestProcessor.processForwardConfig(WorkbenchClientTilesRequestProcessor.java:80)
at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)
at
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:507)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:1008)
at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:419)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:28)
at
weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at
com.cibcwm.go.otis.mf.client.servlet.WorkbenchClientFilter.doFilter(WorkbenchClientFilter.java:73)
at
weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at
com.cibcwm.go.otis.client.common.AuthRedirectFilter.doFilter(AuthRedirectFilter.java:179)
at
weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:27)
at
weblogic.servlet.internal.RequestDispatcherImpl.include(RequestDispatcherImpl.java:644)
at
weblogic.servlet.internal.RequestDispatcherImpl.include(RequestDispatcherImpl.java:423)
at
com.cibcwm.go.otis.common.workbench.ui.DecoratorFilter.doFilter(DecoratorFilter.java:238)
We have multiple web applications deployed to a common WebLogic 8.1 SP3 domain.
A single common web application provides the user framework for a number of
embedded web app's that provide specific business functionality. Each webapp is
deployed as part of an application-specifc EAR file. The common web app is also
deployed as a part of an EAR. The problem is temporarily resolved by restarting
the affected server or redeploying the common EAR including webapp from the WLS
console. The business webapps will often draw a page with tiles, including the
banner from the common webapp. The first time such a page is composed is when
we see this problem. If we can safely navigate to one of these page types, we
don't see the problem until the server is restarted again.
Any ideas? We thought that configuring isModuleAware in struts-config.xml from
true to false might help, but this does not seem to be the case.
thanks in advance,
Chris
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