I recently purchased  "Beginning JSP Web Development", installed the JDK, installed 
Tomcat, started Tomcat,
 verified that Tomcat was up and running by "http://localhost:8080";.   

Then, I executed one of the sample Servlets --- everything worked OK.

Then, I tried to execute one of the JSPs -------   I received the following error..  
Can you help???

Apache Tomcat/4.0.3 - HTTP Status 500 - Internal Server 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 

javax.servlet.ServletException: Servlet.init() for servlet jsp threw exception
        at 
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:935)
        at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:653)
        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
        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:190)
        at 
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
        at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:475)
        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:2343)
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
        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:468)
        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:174)
        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:1012)
        at 
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1107)
        at java.lang.Thread.run(Thread.java:484)


root cause 

java.lang.NoSuchMethodError
        at 
org.apache.jasper.compiler.TldLocationsCache.processJars(TldLocationsCache.java:202)
        at org.apache.jasper.compiler.TldLocationsCache.(TldLocationsCache.java:139)
        at org.apache.jasper.EmbededServletOptions.(EmbededServletOptions.java:345)
        at org.apache.jasper.servlet.JspServlet.init(JspServlet.java:266)
        at 
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:916)
        at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:653)
        at 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
        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:190)
        at 
org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
        at 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:475)
        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:2343)
        at 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
        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:468)
        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:174)
        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:1012)
        at 
org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1107)
        at java.lang.Thread.run(Thread.java:484)


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