FULL PRODUCT VERSION :
$ java -version
java version "1.8.0_161"
Java(TM) SE Runtime Environment (build 1.8.0_161-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.161-b12, mixed mode)

ADDITIONAL OS VERSION INFORMATION :
Windows Server 2012 R2 && Windows 7 both show the behavior when running the Java application.

A DESCRIPTION OF THE PROBLEM :
When using JAAS to authenticate to a local Active Directory Domain, it is successful with a password like "Abc12345" but unsuccessful with the password "Abç12345".

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Have an AD user that has a password with a French character and try the username and password to authenticate using JAAS to that domain.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
User should be able to login no matter what characters are in their password.
ACTUAL -
User is not allowed to authenticate.

ERROR MESSAGES/STACK TRACES THAT OCCUR :
Actual error from domain authentication: Pre-authentication information was invalid (24)

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
Here is a short sample of our code that does this.

        final String krb5Config = KERBEROS_LOGIN_CONFIG;

        final String userName = adjustUserName(uid.getName() );
        
        KnownCredentialsCallback callback =
            new KnownCredentialsCallback(userName, password);
        LoginContext lc = null;

        try
        {
            lc = new LoginContext(krb5Config, callback);
            lc.login();
        }
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
Dont use French characters in your password.