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Why the SnoopServlet in Tomcat 3.2.1 doesn't compile?

 
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Posts: 61
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I couldn't figure out why the SnoopServlet.java that comes with
Tomcat 3.2.1 doesn't compile. The compiler complains about
that the parameter "context", which is a ServletContext, doesn't
have a method "getInitParameterNames()", among other things.
I have also tried to directly call the SnoopServlet.class that
comes together with Tomcat3.2.1, then it gives me an Error 500
message. Would any kind soul please help me out? I am enclosing
the SnoopServlet.java as follow:
/* $Id: SnoopServlet.java,v 1.3 1999/10/15 21:31:49 duncan Exp $
*
*/
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Enumeration;
import javax.servlet.*;
import javax.servlet.http.*;
/**
*
*
* @author James Duncan Davidson <duncan@eng.sun.com>
* @author Jason Hunter <jch@eng.sun.com>
*/
public class SnoopServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
PrintWriter out = response.getWriter();
response.setContentType("text/plain");
out.println("Snoop Servlet");
out.println();
out.println("Servlet init parameters:");
Enumeration e = getInitParameterNames();
while (e.hasMoreElements()) {
String key = (String)e.nextElement();
String value = getInitParameter(key);
out.println(" " + key + " = " + value);
}
out.println();
out.println("Context init parameters:");
ServletContext context = getServletContext();
Enumeration enum = context.getInitParameterNames();
while (enum.hasMoreElements()) {
String key = (String)enum.nextElement();
Object value = context.getInitParameter(key);
out.println(" " + key + " = " + value);
}
out.println();
out.println("Context attributes:");
enum = context.getAttributeNames();
while (enum.hasMoreElements()) {
String key = (String)enum.nextElement();
Object value = context.getAttribute(key);
out.println(" " + key + " = " + value);
}
out.println();

out.println("Request attributes:");
e = request.getAttributeNames();
while (e.hasMoreElements()) {
String key = (String)e.nextElement();
Object value = request.getAttribute(key);
out.println(" " + key + " = " + value);
}
out.println();
out.println("Servlet Name: " + getServletName());
out.println("Protocol: " + request.getProtocol());
out.println("Scheme: " + request.getScheme());
out.println("Server Name: " + request.getServerName());
out.println("Server Port: " + request.getServerPort());
out.println("Server Info: " + context.getServerInfo());
out.println("Remote Addr: " + request.getRemoteAddr());
out.println("Remote Host: " + request.getRemoteHost());
out.println("Character Encoding: " + request.getCharacterEncoding());
out.println("Content Length: " + request.getContentLength());
out.println("Content Type: "+ request.getContentType());
out.println("Locale: "+ request.getLocale());
out.println("Default Response Buffer: "+ response.getBufferSize());
out.println();
out.println("Parameter names in this request:");
e = request.getParameterNames();
while (e.hasMoreElements()) {
String key = (String)e.nextElement();
String[] values = request.getParameterValues(key);
out.print(" " + key + " = ");
for(int i = 0; i < values.length; i++) {
out.print(values[i] + " ");
}
out.println();
}
out.println();
out.println("Headers in this request:");
e = request.getHeaderNames();
while (e.hasMoreElements()) {
String key = (String)e.nextElement();
String value = request.getHeader(key);
out.println(" " + key + ": " + value);
}
out.println();
out.println("Cookies in this request:");
Cookie[] cookies = request.getCookies();
for (int i = 0; i < cookies.length; i++) {
Cookie cookie = cookies[i];
out.println(" " + cookie.getName() + " = " + cookie.getValue());
}
out.println();
out.println("Request Is Secure: " + request.isSecure());
out.println("Auth Type: " + request.getAuthType());
out.println("HTTP Method: " + request.getMethod());
out.println("Remote User: " + request.getRemoteUser());
out.println("Request URI: " + request.getRequestURI());
out.println("Context Path: " + request.getContextPath());
out.println("Servlet Path: " + request.getServletPath());
out.println("Path Info: " + request.getPathInfo());
out.println("Path Trans: " + request.getPathTranslated());
out.println("Query String: " + request.getQueryString());
out.println();
HttpSession session = request.getSession();
out.println("Requested Session Id: " +
request.getRequestedSessionId());
out.println("Current Session Id: " + session.getId());
out.println("Session Created Time: " + session.getCreationTime());
out.println("Session Last Accessed Time: " +
session.getLastAccessedTime());
out.println("Session Max Inactive Interval Seconds: " +
session.getMaxInactiveInterval());
out.println();
out.println("Session values: ");
Enumeration names = session.getAttributeNames();
while (names.hasMoreElements()) {
String name = (String) names.nextElement();
out.println(" " + name + " = " + session.getAttribute(name));
}
}
}
 
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Posts: 13078
6
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The only possibility I can think of is that you have an old JSDK jar file somewhere on your system that the compiler is finding first. I wasted days on a bizarre error message like this for that reason.
Bill
 
We've gotta get close enough to that helmet to pull the choke on it's engine and flood his mind! Or, we could just read this tiny ad:
Thread Boost feature
https://coderanch.com/t/674455/Thread-Boost-feature
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