STRING_DEFAULT_CODEC - deserialize can return null

TypeDefinitionAwareCodec contains class StringCodecStringImpl where deserialize method is implemented like this:

public String deserialize(String stringRepresentation)

{ return stringRepresentation; }

It cause NullPointerException when trying parse from composite node to normalized node (if there is node with null value).

Could it be like this?

public String deserialize(String stringRepresentation)

{ return stringRepresentation == null ? "" : stringRepresentation; }