setLongFile(Tar.TarLongFileMode) to make Ant's Introspection
             mechanism do the work and also to encapsulate operations on
             the mode in its own class.</i></div>
<div class="block">Set how to handle long files, those with a path&gt;100 chars.
 Optional, default=warn.
 <p>
 Allowable values are
 <ul>
 <li>  truncate - paths are truncated to the maximum length
 <li>  fail - paths greater than the maximum cause a build exception
 <li>  warn - paths greater than the maximum cause a warning