This set of sample files illustrate CORBA callback, using
Java IDL, JDK1.2 version (NOT JDK1.4)

The sample files are from:
http://java.sun.com/products/jdk/1.2/docs/guide/idl/jidlExample3.html

The files are: 
  HelloClient.java, which includes two classes -
       HelloCallbackServant and HelloClient
  HelloServer.java, which includes two classes -
       HelloServant and HelloServer.

Follow instructions in the book or in the web page
for compiling and running the sample.
