java - Google OAuth2 API v2 userinfo always returns null for email -

i'm trying authenticated user's email addresses.

i've done authentication scopes

email profile https://www.googleapis.com/auth/plus.login https://www.googleapis.com/plus/v1/people/me https://www.googleapis.com/auth/userinfo.email 

this call returns null email name, link, picture, etc populated:

userinfoplus userinfo2 = oauth2.userinfo().v2().me().get().execute(); log.info(userinfo2.tostring()); 

outputs:

{   "family_name" : "homlish",   "gender" : "male",   "given_name" : "paul",   "id" : "107004799409225320539",   "link" : "https://plus.google.com/107004799409225320539",   "locale" : "en",   "name" : "paul homlish",   "picture" : "https://lh4.googleusercontent.com/-bcrlxuqr__e/aaaaaaaaaai/aaaaaaaabr8/lqcliyz_jgi/photo.jpg" }  

inspecting can see email field, null.

any ideas missing?

although scopes using don't prompt user permissions, there scopes can delete not needed?

thanks, paul

by setting scope 'email', authenticating, , using com.google.api.client.googleapis.auth.oauth2.googlecredential , com.google.api.services.oauth2.oauth2 able receive email:

        googlecredential credential = new googlecredential().setaccesstoken(tokenfromauthentication);          oauth2 oauth2 = new oauth2.builder(new nethttptransport(), new jacksonfactory(), credential)                 .setapplicationname("oauth2")                 .build();         userinfoplus userinfo = oauth2.userinfo().get().execute();