Save oauth/token body into Java object

After I successfully run the request to http://IP:port/oauth/ token to get the authorization token from oauth using spring framework, the response body looks something like this:

{
     access_token = jsjxjdnjf .... some_acces_token,
     token_type: bearer,
     (....) more fields
}

The client to acces this endpoint is a simple Java app using org.springframework.web.client.RestTeplate My question is: Is there a predefined class that allows me to encapsulate(map) that information and access it through getters? Or I have to implement it myself, which would look like this:

public class OauthTokeWrapper {
private String access_token;
(...)//getters,constructors...
}