FileUtils.forceMkdir(geronimoHome);
Expand unzip = (Expand)createTask("unzip");
unzip.setSrc(assemblyArchive);
unzip.setDest(installDirectory.getCanonicalFile());
unzip.execute();
// Make scripts executable, since Java unzip ignores perms
Chmod chmod = (Chmod)createTask("chmod");
chmod.setPerm("ugo+rx");
chmod.setDir(geronimoHome);