I\'ve got the URI like this:
https://google.com.ua/oauth/authorize?client_id=SS&response_type=code&scope=N_FULL&access_type=offline&redirect_
If you are using servlet doGet try this
request.getParameterMap()
Returns a java.util.Map of the parameters of this request.
Returns: an immutable java.util.Map containing parameter names as keys and parameter values as map values. The keys in the parameter map are of type String. The values in the parameter map are of type String array.
(Java doc)