if (dataFile.exists() && dataFile.canRead()
&& dataFile.isFile()) {
try {
ObjectInputStream input = new ObjectInputStream(
new FileInputStream(dataFile));
Object result = input.readObject();
// Type erasure, all that stuff ... not good ... noooot
// good.
input.close();
workerStack = (Map<UUID, WorkerInfo>) result;
} catch (Exception ex) {