case NIL:
messageUnpacker.unpackNil();
nextToken = JsonToken.VALUE_NULL;
break;
case BOOLEAN:
boolean b = messageUnpacker.unpackBoolean();
nextToken = b ? JsonToken.VALUE_TRUE : JsonToken.VALUE_FALSE;
break;
case INTEGER:
messageUnpacker.unpackValue(valueHolder);
nextToken = JsonToken.VALUE_NUMBER_INT;