Reading RDF/JSON into model, there is error when json file has number value

[Qi He]

Hello,

After call model.read("http://dbpedia.org/data/The_Adventures_of_Tom_Sawyer.
json","RDF/JSON");

It show error message: JSON Values given for properties for an Object must
be Strings

In JSON file, some value are number not string, I can't change
the JSON file. how could I parse number value?

-Qi