Issue with Google Contacts API - gwt

Question

I'm running an issue with gwt-oauth and Google contacts API.
I use gwt-oauth to login and everything works fine.
While running the RPC for retrieving the contacts I get
WARNING: Authentication error: Unable to respond to any of these challenges: {}
java.lang.NullPointerException: No authentication header information
Here is the code in Client
Button button = new Button("Authenticate with Google");
button.addClickHandler(new ClickHandler() {
#Override
public void onClick(ClickEvent event) {
final AuthRequest req = new AuthRequest(K.GOOGLE_AUTH_URL, K.GOOGLE_CLIENT_ID).withScopes(K.CONTACTS_SCOPE, K.AUTH_SCOPE);
AUTH.expiresIn(req);
AUTH.login(req, new Callback<String, Throwable>() {
#Override
public void onSuccess(final String token) {
greetingService.loginDetails(token, new AsyncCallback<LoginInfo>() {
#Override
public void onSuccess(LoginInfo result) {
greetingService.getContactList(token, new AsyncCallback<Boolean>() {
#Override
public void onSuccess(Boolean result) {
Window.alert("oh");
}
#Override
public void onFailure(Throwable caught) {
Window.alert("Error:\n" + caught.getMessage());
}
});
}
#Override
public void onFailure(Throwable caught) {
// TODO Auto-generated method stub
}
});
}
#Override
public void onFailure(Throwable caught) {
Window.alert("Error:\n" + caught.getMessage());
}
});
}
});
And here the serverside for contacts:
try {
ContactsService s = new ContactsService(K.APPLICATION_NAME);
s.setProtocolVersion(ContactsService.Versions.V3);
s.setAuthSubToken(token);
s.setHeader("Authorization", "Bearer " + token);
for (ContactEntry entry : s.query(new Query(new URL(K.CONTACTS_SCOPE)), ContactFeed.class).getEntries())
System.out.println(entry.toString());
} catch (Exception e) {
e.printStackTrace();
}
return true;
This was working couple of weeks ago...
I assume is not a scope issue since loginDetails works properly...
Any idea?

Answer 1

Solved.
Scope for contacts in Auth was set to: https://www.google.com/m8/feeds/contacts/default/full/
Apparently this doesn't work anymore and I just set https://www.google.com/m8/feeds/ for auth
and the full url for querying in ContactService