Make sure you've configured Tomcat and Maven as discussed in Download Tomcat 7.x (optional) and Download Maven 3,
and that you've updated the soap:address element in the WSDL as discussed in Creating the WSDL. If so,
starting Tomcat and running mvn tomcat7:redeploy from the project root folder should deploy the web service provider
onto Tomcat. As a check to make sure the WSP has loaded successfully, make sure you can view the WSDL from a browser at
http://localhost:8080/doubleit/services/doubleit?wsdl before running the client. If it cannot be viewed, check the Tomcat
logs (logs/catalina.out is usually the most helpful) for error messages to help with troubleshooting.