I am getting this huge exception when attempting to start the one of my
webapps (webmail). At the end, it says 'starting completed', but the
webapp doesn't run. Anyone know what the exception means? 

Server: 
RedHat 7.1 
JDK 1.3.1 
Apache 1.3.2 -> mod_webapp -> Tomcat 4.0.1 

Short form: _______________________
2002-01-15 17:35:01 StandardContext[/webmail]: Servlet /webmail threw
load() exception 
javax.servlet.ServletException: Servlet.init() for servlet jsp threw
exception 
...
----- Root Cause ----- 
java.lang.ClassCastException:
org.apache.xerces.jaxp.DocumentBuilderFactoryImpl 


Full Error: ________________________
2002-01-15 17:35:00 StandardContext[/webmail]: Configuring application
event listeners 
2002-01-15 17:35:00 StandardContext[/webmail]: Sending application
start events 
2002-01-15 17:35:00 StandardContext[/webmail]: Starting filters 
2002-01-15 17:35:00 StandardContext[/webmail]: Posting standard context
attributes 
2002-01-15 17:35:00 StandardWrapper[/webmail:default]: Loading
container servlet default 
2002-01-15 17:35:00 default: init 
2002-01-15 17:35:00 jwma: init 
2002-01-15 17:35:01 StandardWrapper[/webmail:invoker]: Loading
container servlet invoker 
2002-01-15 17:35:01 invoker: init 
2002-01-15 17:35:01 jsp: init 
2002-01-15 17:35:01 StandardContext[/webmail]: Servlet /webmail threw
load() exception 
javax.servlet.ServletException: Servlet.init() for servlet jsp threw
exception 
at
org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:871)

at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3267)

at
org.apache.catalina.core.StandardContext.start(StandardContext.java:3384)

at org.apache.catalina.core.StandardHost.start(StandardHost.java:826) 
at
org.apache.catalina.servlets.ManagerServlet.start(ManagerServlet.java:587)

at
org.apache.catalina.servlets.ManagerServlet.doGet(ManagerServlet.java:287)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:740) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) 
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)

at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)

at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)

at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)

at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)

at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) 
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:201)

at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)

at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:518)

at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)

at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)

at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) 
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2344)

at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)

at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)

at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)

at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)

at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)

at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)

at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)

at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)

at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)

at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) 
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:163)

at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)

at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)

at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) 
at
org.apache.catalina.connector.warp.WarpRequestHandler.handle(WarpRequestHandler.java:215)

at
org.apache.catalina.connector.warp.WarpConnection.run(WarpConnection.java:194)

at java.lang.Thread.run(Thread.java:484) 
----- Root Cause ----- 
java.lang.ClassCastException:
org.apache.xerces.jaxp.DocumentBuilderFactoryImpl 
at
javax.xml.parsers.DocumentBuilderFactory.newInstance(DocumentBuilderFactory.java:139)

at
org.apache.jasper.parser.ParserUtils.parseXMLDocument(ParserUtils.java:183)

at
org.apache.jasper.compiler.TldLocationsCache.processWebDotXml(TldLocationsCache.java:165)

at
org.apache.jasper.compiler.TldLocationsCache.<init>(TldLocationsCache.java:138)

at
org.apache.jasper.EmbededServletOptions.<init>(EmbededServletOptions.java:324)

at org.apache.jasper.servlet.JspServlet.init(JspServlet.java:266) 
at
org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:852)

at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3267)

at
org.apache.catalina.core.StandardContext.start(StandardContext.java:3384)

at org.apache.catalina.core.StandardHost.start(StandardHost.java:826) 
at
org.apache.catalina.servlets.ManagerServlet.start(ManagerServlet.java:587)

at
org.apache.catalina.servlets.ManagerServlet.doGet(ManagerServlet.java:287)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:740) 
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) 
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)

at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)

at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:243)

at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)

at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)

at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) 
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:201)

at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)

at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:518)

at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)

at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)

at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) 
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2344)

at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)

at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)

at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)

at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)

at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)

at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)

at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)

at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)

at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)

at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) 
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:163)

at
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)

at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)

at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943) 
at
org.apache.catalina.connector.warp.WarpRequestHandler.handle(WarpRequestHandler.java:215)

at
org.apache.catalina.connector.warp.WarpConnection.run(WarpConnection.java:194)

at java.lang.Thread.run(Thread.java:484) 

2002-01-15 17:35:01 StandardContext[/webmail]: Starting completed 

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