Ok, i'm not sure for 100%, but I've had a same errors before. All I did, 
is
removed the same .jar's from $CLASSPATH and TOMCAT_HOME/lib/*.jar 
directory,
and from JAVA_HOME/jre/lib/ext/*.jar.
I think that JDK + TOMCAT + $CLASSPATH having same files, get messed up 
for some
reason. Make sure that $CLASSPATH has all stuff that you need. And avoid 
doubling.
But maybe it's not in this case.
Good luck. 
  
>>>>>>>>>>>>>>>>>> Original Message <<<<<<<<<<<<<<<<<<

On 2/6/01, 12:33:12 PM, "Richard Pope" <[EMAIL PROTECTED]> wrote 
regarding Newbie pls help with error 500:


> I have RH 7.0 and have installed, jre1.3, apache and tomcat.

> Apache runs fine, as do the servlet examples on tomcat, but whenever I 
try
> and run a jsp example i get the following!!!

> Can someone please tell me what i've done wrong??

> Richard <><

> Error: 500
> Location: /examples/jsp/num/numguess.jsp
> Internal Servlet Error:

> javax.servlet.ServletException: sun/tools/javac/Main
>       at 
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:399)
>       at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>       at 
org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404)
>       at org.apache.tomcat.core.Handler.service(Handler.java:286)
>       at 
org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
>       at
> 
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:
79
> 7)
>       at 
org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)
>       at
> 
org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(Htt
pC
> onnectionHandler.java:210)
>       at
> org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)
>       at
> 
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498)
>       at java.lang.Thread.run(Thread.java:484)

> Root cause:
> java.lang.NoClassDefFoundError: sun/tools/javac/Main
>       at
> 
org.apache.jasper.compiler.SunJavaCompiler.compile(SunJavaCompiler.java:12
8)
>       at org.apache.jasper.compiler.Compiler.compile(Compiler.java:245)
>       at 
org.apache.jasper.servlet.JspServlet.doLoadJSP(JspServlet.java:462)
>       at
> org.apache.jasper.servlet.JasperLoader12.loadJSP(JasperLoader12.java:146)
>       at 
org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:433)
>       at
> 
org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(Jsp
Se
> rvlet.java:152)
>       at
> 
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.
ja
> va:164)
>       at 
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:318)
>       at 
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:391)
>       at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
>       at 
org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404)
>       at org.apache.tomcat.core.Handler.service(Handler.java:286)
>       at 
org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
>       at
> 
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java:
79
> 7)
>       at 
org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)
>       at
> 
org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(Htt
pC
> onnectionHandler.java:210)
>       at
> org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416)
>       at
> 
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:498)
>       at java.lang.Thread.run(Thread.java:484)


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