examples new user

[Ma...@aol.com]

I've tried to run the examples it worked for numberguess and date but tried 
to run other examples and got the error:  

type Exception report

message Internal Server Error

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

exception org.apache.jasper.JasperException: Unable to compile class for 
JSPC:\jakarta-tomcat-4.0.1\jakarta-tomcat-4.0.1\work\localhost\examples\jsp\sn

p\snoop$jsp.java:180: Incompatible type for method. Explicit cast needed to 
convert java.lang.Throwable to java.lang.Exception.if (pageContext != null) 
pageContext.handlePageException(t);^1 error at 
org.apache.jasper.compiler.Compiler.compile(Compiler.java:284)  at 
org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:546)   at 
org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspServ

let.java:177)   at 
org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java

:189)   at 
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:382)    
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:474)    at 
javax.servlet.http.HttpServlet.service(HttpServlet.java:853)    at 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFi

lterChain.java:247) at 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChai

n.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.j

ava:472)    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.ja

va: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:1

63) 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.http.HttpProcessor.process(HttpProcessor.java:10

11) at 
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1106)   
at java.lang.Thread.run(Thread.java:484)


any ideas

 thanx mac