Scenario: The user has an account for netbeans.org but is not in the Synergy database. In this case clicking the Sign In button on the Synergy page results in an error message saying "Login Failed, Incorrect credentials, please try again" or no error message at all. With Google Chrome the user may even be redirected to https://netbeans.org/mypage#/?revalidate=1 which shows a successful login.
It would be nice to get a more descriptive error message like "Login failed, Your account is not enabled for Synergy".
I'll add check so when user clicks on Sign in, I'll first check if his/her account exists in Synergy. If no, proper message will be displayed without any redirecting.
Thank you for reporting.
Should be fixed now #454