Tomcat: "Wrapper cannot find servlet class"

Front-end
#1

Pessoal,
Instalei o tomcat5, iniciei ele show de bola… mas teve um ALERT no servlet-example, que nao iniciou. de reto foi…
dai qdo clico no link do jsp-example, vou la no exemplo basico de comparison e ele me retorna a seguinte exception:

type Exception report

message 

description The server encountered an internal error () that prevented it from fulfilling this request.

exception 

javax.servlet.ServletException: Wrapper cannot find servlet class org.apache.jsp.jsp2.el.basic_002dcomparisons_jsp or a class it depends on
	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:541)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
	org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
	org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
	org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
	org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	java.lang.Thread.run(Thread.java:595)


root cause 

java.lang.ClassNotFoundException: org.apache.jsp.jsp2.el.basic_002dcomparisons_jsp
	org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1352)
	org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1198)
	org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
	org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:541)
	org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
	org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
	org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
	org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
	org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
	java.lang.Thread.run(Thread.java:595)

tenho 99% de certeza que é permissao em alguma coisa ( ou faltando acertar as variaveis de ambiente)…
criei um sh pra rodar antes do start do tomcat:

#!/bin/sh
JAVA_HOME=/usr/local/jdk1.5.0_06
CATALINA_HOME=/usr/local/apache-tomcat-5.5.17
CLASSPATH=$CATALINA_HOME/common/lib/servlet-api.jar:.:$CLASSPATH
CLASSPATH=$CATALINA_HOME/common/lib/jsp-api.jar:$CLASSPATH
CLASSPATH=$CATALINA_HOME/common/lib:$CLASSPATH
CLASSPATH=$JAVA_HOME/lib/tools.jar:$CLASSPATH
PATH=$JAVA_HOME/bin:$PATH

# export
export JAVA_HOME CATALINA_HOME PATH CLASSPATH

# see what is the request
if [ "$1" = "start" ] ; then
   echo "#####################"
   echo "# Starting Tomcat..."
   echo "# CLASSPATH = " $CLASSPATH
   echo "#####################"
   $CATALINA_HOME/bin/startup.sh "$@"
else
   echo "#######################"
   echo "# Stopping Tomcat...  #"
   echo "#######################"
   $CATALINA_HOME/bin/shutdown.sh "$@"
fi

Acho que esta tudo ai… ta faltando alguma coisa???
Alguem tem alguma dica???

Obrigado!

#2

parece que não quer compilar os JSP´s…
mas eu vi e tem permissao de execução na pasta do jdk…

#3