mutables = new HashMap<String, Object>();
allAttributes.put("IMMUTABLE", "IMMUTABLE");
immutables.put("IMMUTABLE", "IMMUTABLE");
MutableObject mo = new MutableObject("MUTABLE");
allAttributes.put("MUTABLE", mo);
mutables.put("MUTABLE", mo);
allAttributes = Collections.unmodifiableMap(allAttributes);
immutables = Collections.unmodifiableMap(immutables);