classpath error in java

Question

I have written a java program where I am using a .jar library (Jinterface). I compile it using:

javac -classpath lib/OtpErlang.jar Game.java Actions.java 

where the lib dir is inside my project folder.

There is no error when compiling but I get a runtime error like this:

Exception in thread "main" java.lang.NoClassDefFoundError: com/ericsson/otp/erlang/OtpErlangObject
at Game.main(Game.java:7)
Caused by: java.lang.ClassNotFoundException: com.ericsson.otp.erlang.OtpErlangObject
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 1 more

And I think that it has to do with the classpath, what is wrong?

Here is the Game class:

import java.io.IOException;

public class Game {

    public static void main(String[] args) throws IOException {

        Actions server = new Actions();

        server.moveRight();


    }

} 

Answer 1

This command did the trick:

java -classpath lib/OtpErlang.jar:.  Game 

I have missed the :. (which tells where my main class is, I suppose...)

Answer 2

Try running it like this, from the root of all your java packages:

java -classpath lib/OtpErlang.jar Game

Answer 3

Try like this.I hope this will help.....

javac -cp . lib/OtpErlang.jar Game.java Actions.java