Sorry I forgot to add this to my original post. The stack trace and class are as follows:
java.lang.ClassNotFoundException: org.objectweb.rmijdbc.Driver
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClassInternal(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at RJDemo.main(RJDemo.java:17)
I have set the CLASSPATH in the Environment Variables to point to the RmiJdbc.jar file. Both the client and the server files were downloaded from