Part III of this book consists of a single chapter containing listings of the WSDL files for the JAX-RPC based book web service used in Chapter 2, Chapter 5, and Chapter 6. A glance at these files will probably be enough to convince you that the availability of tools that convert between WSDL and Java interfaces (and therefore relieve of the task of decoding WSDL or creating files manually) is a very good thing!