The examples require the following libraries to be in the classpath. These
libraries are included with the Castor 0.9 release.

Castor 0.9 or above                           (castor-0.9.jar)
Apache Jakarta Regular Expression Library 1.1 (jakarta-regexp-1.1.jar)
Apache Xerces                                 (xerces.jar)
Apache Jakarta Ant 1.2                        (ant_1.2_lib.jar)
