title: Continue executing ant script if one task fails
body: <p>I have an Ant script which runs tests then deploys my application to a QA server. To deploy the application it first calls <code>sun-appserv undeploy</code>, for various reasons the application may or may not be deployed. If the application is not deployed then undeploy fails and the whole script halts.</p>
  
  <p>Is there some way that I can tolerate a failure on one task, log it, and let the rest of the script run? </p>