Execute all nestedTasks.
if (fileset == null || fileset.getDir(getProject()) == null) {
throw new BuildException("Fileset was not configured");
}
for (Enumeration e = nestedTasks.elements(); e.hasMoreElements();) {
Task nestedTask = (Task) e.nextElement();
nestedTask.perform();
}
nestedEcho.reconfigure();
nestedEcho.perform();