This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
You cannot include jars in a jar. The classloaders will not find classes inside of multiple jars. To do this, you'll need to write ( or find) a custom classloader or better add classes to your JAR File's Classpath according to