@MojoParameter(expression="${beanstalk.cnamePrefix}", required=true)
String cnamePrefix;
protected Object executeInternal() throws MojoExecutionException,
MojoFailureException {
CheckDNSAvailabilityRequest checkDNSAvailabilityRequest = new CheckDNSAvailabilityRequest(
cnamePrefix);
CheckDNSAvailabilityResult result = getService()
.checkDNSAvailability(checkDNSAvailabilityRequest);