Oracle Fusion Middleware: Error Assigning Users To Application Role in OBIEE 11g - Kullanıcuların Uygulama Rolüne Atanırken Hata Alması

After installing OBIEE 11.1.1.7 on our system, we encountered with an error. This error was occuring although we had succesfully set our Active Directory. Our AD setup was working fine and we were logging in to system with the AD accounts.

Regarding the setup, you could check on how we have done it.
1-rovider - Active Directory Authentication to OBIEE 11g - Active Directory Configuration'ını OBIEE 11g İçin Yapmak

2-hentication to OBIEE 11g - 2 - Deleting Default Provider - Active Directory Configuration'ını OBIEE 11g İçin Yapm

The error that we have seen is

Java.lang.NullPointerException
#{viewScope.emas_pagemodel_security_EditAppRole.searchPrincipal}: java.lang.NullPointerException
     Hide Additional Trace Information

The error screen was like the picture below:

After that we have searched for the error, we have seen that there was a bug concerning this problem.

"Bug 16808088 : 11G JAVA.LANG.NULLPOINTEREXCEPTION ADDING USER TO ROLE AFTER UPGRADE TO 11.1.1.7"

The proposed solution is to set the virtualize parameter to false if it ise set. Virtualize parameter doesn't work with the username.attr which we have previously set in the security provider configuration settings.

In the end, we changed its value to false and we were able overcome this problem.

Reference:
1- https://community.oracle.com/thread/2530201?start=0&tstart=0