[appengine-java] Login problem : user always null !

Good morning, >From yesterday on and despite NO change in my code, user authentication (using LoginInfo described in Getting Started / Tutorials / AppEngine on appspot.com domain) ceased functioning : any login request (either non-connected user or connected users using several different login nam

[appengine-java] Perfectly working test architecture suddenly stops functioning, no error log

Good afternoon, My application uses Login services from Google on AppEngine, I copied and pasted tutorial code for login functionality (http:// code.google.com/intl/fr-FR/webtoolkit/doc/latest/tutorial/ appengine.html) and got wonderful results for 4 days (when already logged in, got redirected to