DataUtils.get(Class<T>) throws JsonSyntaxException

[occupant23]

DataUtils.get(Class) does not work with simple Strings (containing spaces) on the first level.
This results in a JsonSyntaxException.

[h-arlt]

Changes look good to me.

From a code style perspective, variables should be declared as 'final' unless explicitly needed in order to avoid issues caused by accidental re-assignments.