src/main/java/com/cedarsoftware/util/io/JsonReader.java
static Map makeArgMap(Map<String, Object> args, boolean useMaps)
    {
        args.put(USE_MAPS, useMaps);
        return args;
    }
static Map makeArgMap(Map<String, Object> args, boolean useMaps)
    {
        args.put(USE_MAPS, useMaps);
        return args;
    }
This method is needed to get around the fact that 'this()' has to be the first method of a constructor.