The JSR is about interfaces and specifications for components that different vendors may implement. EJB is of course one of the more famous examples. ANT doesn't really represent this type of work as it's an application all to it's self. Hence, I'm not sure that the JSR would be interested in it.
Author of <a href="http://www.amazon.com/exec/obidos/ASIN/0672324261/ref=jranch-20" target="_blank" rel="nofollow">Ant Developer's Handbook</a>
This will take every ounce of my mental strength! All for a tiny ad: