Step 4: Test the Web Service 
  In this section, you will  start the server  and then use the server's built-in
  test functionality to test the web service you created in the preceding sections..
  To Start the Server
  
          - In the Servers view, right-click WebLogic
               Server v10.3, then click Start.
 
  
To Test a Web Service
  A web service does not do anything unless a request is received from a client. For testing your web service, Workshop provides a test client through which you can send messages to the service and review the response message. The test client runs in the IDE as an editor window.
  To test the web service:
  
    - In the Project Explorer view, expand
      the services 
      package. 
 
    - Right-click MailingListService.java and 
      select Run As > Run On Server.
 
    - In the Run On Server dialog, select the Always use this server when running this project check box. This will reduce the number of steps in the next part 
      of this tutorial, as the IDE will remember your server choice. 
 
    - Click Finish.
 
    - After the server starts and the application is deployed (note the status bar in the lower right corner of the IDE), the IDE displays the test client as shown here:        
 
            
			This web service has only one operation (getCustomers). 
          If there were input values required by getCustomers, 
          there would be input fields that would allow you to specify values. Clicking 
           the getCustomers button sends a request message to 
        the web service. 
      - Click the getCustomers button now to invoke the getCustomers 
          method.
          
          The test client displays the results of invoking the web service operation 
          (including the returned value) and also the detail of the SOAP-encoded request 
          that was sent to the web service and the response that was received, including 
          the string returned by the getCustomers operation/method: 
          "John Smith".        
          
       
      - You can test your web service operation again by clicking Show 
          Operations at the top left corner. You can also examine the automatically 
          generated WSDL (Web Service Description Language) file by clicking the 
          link at the top of the Test Client page.