Do I need to use the AJP13 container for this?

Thu, 21 Jun 2001 09:21:31 -0700 

I am running Tomcat 3.2.1 with Apache 1.3.14.  My default container is
AJP12(mainly because I haven't tried the AJP13 yet [yeah, i know its in the
docs, just haven't had time to read them to update it to use 13).  If I run
the HTML form against this servlet I get this error.  

I know usually a java.lang.NullPointerException means something is null
where it should't be (like no params are passsed to the servlet).  But the
URL it passes (see below) shows it is passing them.

Any ideas?  If you don't think it's tomcat-related, post stating so to
prevent other responses from inappropriately spamming the list and/or e-mail
me back privately if it's not on topic.  Thanks!

TOMCAT ERROR CODE:
Error: 500
Location: /java/servlet/JimServlet
Internal Servlet Error:
java.lang.NullPointerException
        at java.lang.ClassLoader.resolveClass0(Native Method)
        at java.lang.ClassLoader.resolveClass(ClassLoader.java:598)
        at
org.apache.tomcat.loader.AdaptiveClassLoader.loadClass(AdaptiveClassLoader.j
ava)
        at
org.apache.tomcat.loader.AdaptiveServletLoader.loadClass(AdaptiveServletLoad
er.java)
        at
org.apache.tomcat.core.ServletWrapper.loadServlet(ServletWrapper.java)
        at org.apache.tomcat.core.ServletWrapper.init(ServletWrapper.java)
        at org.apache.tomcat.core.Handler.service(Handler.java)
        at
org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java)
        at
org.apache.tomcat.core.ContextManager.internalService(ContextManager.java)
        at
org.apache.tomcat.core.ContextManager.service(ContextManager.java)
        at
org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection
(Ajp12ConnectionHandler.java)
        at
org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java)
        at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java)
        at java.lang.Thread.run(Thread.java:498)

URL PASSED FROM HTML CODE:
http://www.this1zmine.com/java/servlet/JimServlet?LINE1=TESTING

HTML FORM SOURCE CODE:

<HTML>
<HEAD></head>
<BODY>
<CENTER>
<FORM METHOD="GET" NAME="TESTER"
ACTION="http://www.this1zmine.com/java/servlet/JimServlet";>
<B>Input1: <INPUT TYPE="TEXT" LENGTH=30 NAME="LINE1"></INPUT>
<INPUT type=submit value="SUBMIT"></INPUT>
</FORM>
</BODY>
</HTML>

SERVLET SOURCE CODE:

import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;

class JimServlet extends javax.servlet.http.HttpServlet {

        public void doGet(
                javax.servlet.http.HttpServletRequest request, 
                javax.servlet.http.HttpServletResponse response)
                throws javax.servlet.ServletException, java.io.IOException {
                performTask(request, response);
        }

        public void doPost(
                javax.servlet.http.HttpServletRequest request, 
                javax.servlet.http.HttpServletResponse response)
                throws javax.servlet.ServletException, java.io.IOException {
                performTask(request, response);
        }

        public void init() {
        }

        public void performTask(
                javax.servlet.http.HttpServletRequest request, 
                javax.servlet.http.HttpServletResponse response) {

                try {
                        response.setContentType("text/plain");
                        ServletOutputStream out =
response.getOutputStream();

                        Enumeration eParmNames =
request.getParameterNames();

                        while (eParmNames.hasMoreElements()) {
                                String name = (String)
eParmNames.nextElement();
                                String value = request.getParameter(name);
                                out.println(name + " = " + value);
                        }
                } 
                catch (Throwable theException) {
                        theException.printStackTrace();
                }
        }
}

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Jim Swart
Agere Systems - Colorado Design Center
Unix/NT/Solaris Systems Administrator
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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