Executable jar with package

Question

Hello,
I have been making jar files and using the manif.txt. But today, I have the need to create a executable jar with a package.
eg: com.skp.util
I typed in my manifest.txt
Main-Class: com.skp.util.classname
(and made sure my return was there).
Then I jar cmf manifest.txt test.jar classname.class
But when I run it, I get a class not found error:
Thanks,
What does one need to do differently to get packages to work.

Answer 1

I tried that with a very simple class, but it does not appear to work?
When you run the jar do you use the package name there?
Here is all I have, it is simple:
mymanif.txt
Main-Class: com/ddi/ags/convert/showargs
Here is how I am crating the jar
jar cmf mymanif.txt test.jar showargs.class
And I run it like this:
java -jar test.jar
And get this error:
$ java -jar test.jar
Exception in thread "main" java.lang.NoClassDefFoundError: com/ddi/ags/convert/s
howargs
And here is the class:
package com.ddi.ags.convert;
import java.io.*;
import java.util.*;
public class showargs
File log_file = new File("C:/testlog.txt");
public static void main(String[] args) throws Exception {
     if (args.length < 1)
     System.out.println("args are less than one.");
     System.exit(1);
     } else {
     FileWriter writeit = new FileWriter("C:/testlog.txt", true);
     for (int i = 0; i < args.length; i++) {
          writeit.write(args[i] + "\n");
          System.out.println(args);
     writeit.close();
     System.out.println("all done with testing.");