When I am startting tomcat after installation, I 
am seeing the following error: 

Using CATALINA_BASE:   D:\Documents and 
Settings\Rajarshi Chowdhury\.netbeans\3.6\jakarta-
tomcat-5.0.19_base
Using CATALINA_HOME:   D:\Program 
Files\NetBeans3.6\jakarta-tomcat-5.0.19
Using CATALINA_TMPDIR: D:\Documents and 
Settings\Rajarshi Chowdhury\.netbeans\3.6\jakarta-
tomcat-5.0.19_base\temp
Using JAVA_HOME:       D:\j2sdk1.4.2_03
Nov 5, 2004 10:48:45 PM 
org.apache.coyote.http11.Http11Protocol init
INFO: Initializing Coyote HTTP/1.1 on port 8084
Nov 5, 2004 10:48:45 PM 
org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 2531 ms
Nov 5, 2004 10:48:45 PM 
org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Nov 5, 2004 10:48:45 PM 
org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache 
Tomcat/5.0.19
Nov 5, 2004 10:48:45 PM 
org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
Nov 5, 2004 10:48:47 PM 
org.apache.catalina.core.StandardHost getDeployer
INFO: Create Host deployer for direct deployment 
( non-jmx ) 
Nov 5, 2004 10:48:47 PM 
org.apache.catalina.core.StandardHostDeployer 
install
INFO: Processing Context configuration file URL 
file:D:\Documents and Settings\Rajarshi 
Chowdhury\.netbeans\3.6\jakarta-tomcat-
5.0.19_base\conf\Catalina\localhost\admin.xml
Nov 5, 2004 10:48:48 PM 
org.apache.struts.util.PropertyMessageResources 
<init>
INFO: Initializing, 
config='org.apache.struts.util.LocalStrings', 
returnNull=true
Nov 5, 2004 10:48:48 PM 
org.apache.struts.util.PropertyMessageResources 
<init>
INFO: Initializing, 
config='org.apache.struts.action.ActionResources',
 returnNull=true
Nov 5, 2004 10:48:48 PM 
org.apache.catalina.core.StandardHostDeployer 
install
INFO: Processing Context configuration file URL 
file:D:\Documents and Settings\Rajarshi 
Chowdhury\.netbeans\3.6\jakarta-tomcat-
5.0.19_base\conf\Catalina\localhost\manager.xml
Nov 5, 2004 10:48:48 PM 
org.apache.catalina.core.StandardHostDeployer 
install
INFO: Processing Context configuration file URL 
file:D:\Documents and Settings\Rajarshi 
Chowdhury\.netbeans\3.6\jakarta-tomcat-
5.0.19_base\conf\Catalina\localhost\balancer.xml
Nov 5, 2004 10:48:48 PM 
org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on port 8084
Nov 5, 2004 10:48:49 PM 
org.apache.jk.common.ChannelSocket init
INFO: JK2: ajp13 listening on /0.0.0.0:8009
Nov 5, 2004 10:48:49 PM 
org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/94  config=null
Nov 5, 2004 10:48:49 PM 
org.apache.catalina.startup.Catalina start
INFO: Server startup in 4109 ms
Nov 5, 2004 10:48:49 PM 
org.apache.coyote.tomcat5.CoyoteAdapter service
SEVERE: An exception or error occurred in the 
container during the request processing
java.lang.NoSuchMethodError: 
javax.servlet.http.HttpServletRequest.getUserPrinc
ipal()Ljava/security/Principal;
        at 
org.apache.catalina.authenticator.AuthenticatorBas
e.invoke(AuthenticatorBase.java:467)
        at 
org.apache.catalina.core.StandardValveContext.invo
keNext(StandardValveContext.java:149)
        at 
org.apache.catalina.core.StandardPipeline.invoke
(StandardPipeline.java:567)
        at 
org.apache.catalina.core.StandardHostValve.invoke
(StandardHostValve.java:184)
        at 
org.apache.catalina.core.StandardValveContext.invo
keNext(StandardValveContext.java:151)
        at 
org.apache.catalina.valves.ErrorReportValve.invoke
(ErrorReportValve.java:164)
        at 
org.apache.catalina.core.StandardValveContext.invo
keNext(StandardValveContext.java:149)
        at 
org.apache.catalina.core.StandardPipeline.invoke
(StandardPipeline.java:567)
        at 
org.apache.catalina.core.StandardEngineValve.invok
e(StandardEngineValve.java:156)
        at 
org.apache.catalina.core.StandardValveContext.invo
keNext(StandardValveContext.java:151)
        at 
org.apache.catalina.core.StandardPipeline.invoke
(StandardPipeline.java:567)
        at 
org.apache.catalina.core.ContainerBase.invoke
(ContainerBase.java:972)
        at 
org.apache.coyote.tomcat5.CoyoteAdapter.service
(CoyoteAdapter.java:206)
        at 
org.apache.coyote.http11.Http11Processor.process
(Http11Processor.java:833)
        at 
org.apache.coyote.http11.Http11Protocol$Http11Conn
ectionHandler.processConnection
(Http11Protocol.java:732)
        at 
org.apache.tomcat.util.net.TcpWorkerThread.runIt
(PoolTcpEndpoint.java:619)
        at 
org.apache.tomcat.util.threads.ThreadPool$ControlR
unnable.run(ThreadPool.java:688)
        at java.lang.Thread.run(Thread.java:534)