GSON: Expected BEGIN_OBJECT but was STRING

Question

I am getting a GSON error trying to unmarshal JSON into an object. The error (Expected BEGIN_OBJECT but was STRING at line 3 column 22) is pointing to line

Answer 1

No, you've not mapped it correctly as your json object isn't a BusinessPartnerCreate, it contains a BusinessPartnerCreate.

You can create a class just to encapsulate your BusinessPartnerCreate but it would be cleaner to deserialize the container as a jsonObject using

 JsonParser parser = new JsonParser();
 JsonObject obj = parser.parse(json).getAsJsonObject();

and then parse the interesting content using

BusinessPartnerCreate bpc = gson.fromJson(obj.get("business-partner-create"), BusinessPartnerCreate.class);

And I suggest you add an annotation to ensure proper mapping of the partnerType field :

   @SerializedName "partner-type"
   protected JAXBElement<String> partnerType;

(and similar for zip-code)