Before you read the quick starts that show how to invoke LiveCycle using web services or Java you need to understand how to invoke LiveCycle using web services and Java which is explained in the invoking section of the SDK help.
Within the web services section it states that you have to create proxy classes (and shows you how using AXIS) and when you do so you will get the following proxy classes:
Also it is recommended that you read the task-based chapters that discuss how to render forms. This section contains a walkthrough that provides information on how to render a form using Java and web services. As part of the web service walkthrough, it points you to the section that discusses how to create proxy classes.
Hope this helps
This took me a while to figure out.
Those Classes listed needs to be generated.
Create a project then add build.xml to the project
<fileset dir="C:\<your own path>axis-bin-1_4\axis-1_4\lib" >
<include name="**/*.jar" />
<taskdef resource="axis-tasks.properties" classpathref="axis.classpath" />
<target name="encryption-wsdl2java-client" description="task">
output="<your project path>\src"
url="<your host>/soap/services/FormsService?wsdl&lc_version=9.0.1" >
Hope this helps.