[java]import java.net.URL;

public class Bla {
public static void main( String[] args ) {
URL u= new Bla().getClass().getResource( "/Bla.class" );
System.out.println( u );
}
}[/java]

stripped down from:
http://www.javaworld.com/javaworld/javatips/jw-javatip105.html

hth