ColdFusion MX 7.0.2 on Websphere 5.1.1: How to resolve DTMConfigurationException

(TechNote) Deploying ColdFusion MX 7.0.2 on Websphere 5.1.1 results in the following error, written to the Websphere SystemOut.log:

[11/7/06 11:26:08:477 EST] 7cb6dc49 WebGroup E SRVE0020E: [Servlet Error]-[MessageBrokerServlet]: Failed to load servlet: org.apache.xml.dtm.DTMConfigurationException: No default implementation found