Unable to figure out the classnotfoundException

Question

Dear Members,
I have an applet on which I want to show images. I have put .class and .html in the same directory and the images in the images directory.
I'm usong Tomcat 5.5.4.
Note: I have created certificates and also policy files for the applet.
When I run the same code using eclipse, the code is working fine.
And when I try to run in the browser its throwing the following Exceptions.
java.lang.NoClassDefFoundError: AdminApplet1$1
     at AdminApplet1.init(AdminApplet1.java:74)
     at sun.applet.AppletPanel.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source) Where AdminApplet1 is my applet.
Following is the code written in the .html
<applet codebase="http://localhost:8080/project/"
        code="AdminApplet1"
        archive="SAdminApplet1.jar"
        height=400
        width=600 >
</applet>where SAdminApplet1.jar is signed jar.
I'm trying to figure out the problem since last 2 days. If you want more details about the problem please let me know.
I have referred http://java.sun.com/developer/technicalArticles/Security/Signed/
for creating the certificates
If you think I've gone wrong while creating the certificate then please show me a way.
I'm looking forward for the helping hands.
Thanks.

Answer 1

Please put all the class files in the jar.
Considor this example:
import java.applet.*;
public class test extends Applet {
     public void start() {
          System.out.println("this is start");
          try{
               System.out.println(System.getProperty("java.version"));
               (new subTest()).printSomething();
          }catch(Exception e){
               e.printStackTrace();
     public void init(){
          System.out.println("this is init");
     class subTest{
          void printSomething(){
               System.out.println("something");
}compiling with javac test.java gives me:
test.class
test$subTest.class
When I remove test$subTest.class and open the applet with a html page I get:
java.lang.NoClassDefFoundError: test$subTest
(looks familiar?)