Part I. Starting from Java Code

The JAX-WS APIs let you bypass the WSDL contract when developing services. You can start developing your services from a piece of Java code. The code might be a class, or classes, from a legacy application that is being upgraded. It can also be a class that is currently used as part of a non-distributed application and it implements features that you want to use in a distributed manner. You annotate the Java code and generate a WSDL document from the annotated code. If you do not want to work with WSDL at all, you can create the entire application without ever generating WSDL.