Use the generated stub and describe the required processing in the skeleton of the Web Service implementation class to implement Web Services. Also, if Project - Build Automatically is set up in Eclipse, when the Java source file of Web Services Implementation Class is stored, the file is automatically compiled by Eclipse, and then the class file (*.class) is generated. In an EJB Web service, you must assign @javax.ejb.Stateless to the Web service implementation class. For details on how to implement Web Services, see 4.3.3 Creating the Web service implementation class in the uCosminexus Application Server Web Service Development Guide.