I am re-posting a post that I thought I made yesterday. It did not show up in my mail from users@tomcat.apache.org, hence I am trying again. My apologies if anyone receives both of my posts.

I am trying to start up an webpage to use as a demo. I am using tomcat 11.  I have been looking at the error but have made no progress figuring out the problem. Below I am including the stack trace I am getting from tomcat and would appreciated any guidance on finding the source of my problem and how to fix it.

The problem occurs when I am in firefox and I enter the url of application, e.g. I enter the following URL:

    localhost:8080/theApp


The  is shown in my postscript.

Thanks for any advise!

Jim A.


_________________________________________________________

postscript

______________

HTTP Status 500 – Internal Server Error

Type Exception Report

Message java.lang.NoClassDefFoundError: javax/servlet/jsp/tagext/TagLibraryValidator

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

jakarta.servlet.ServletException: java.lang.NoClassDefFoundError: javax/servlet/jsp/tagext/TagLibraryValidator
 org.apache.jasper.servlet.JspServlet.service(JspServlet.java:307)
    jakarta.servlet.http.HttpServlet.service(HttpServlet.java:716)
 org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:483)
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
 
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:663)
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
 org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382)
 
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
 
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:905)
 
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1746)
 org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
 
org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1148)
 
org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
 
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63)
    java.base/java.lang.Thread.run(Thread.java:833)


---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org

Reply via email to