else {
String ducc_ling =
Utils.resolvePlaceholderIfExists(
System.getProperty("ducc.agent.launcher.ducc_spawn_path"),System.getProperties());
AlienFile alienFile = new AlienFile(user,fileName,ducc_ling);
dis = alienFile.getDataInputStream();
ois = new ObjectInputStream(new BufferedInputStream(dis));
}
try {
BigInteger mod = (BigInteger) ois.readObject();
BigInteger exp = (BigInteger) ois.readObject();