Unable to log into OBIEE 11.1.1.7 after OBIA 7.9.6.4 installation

Error message:- An error message was received from the BI Security Service: java.security.AccessControlException: access denied (oracle.security.jps.service.credstore.CredentialAccessPermission context=SYSTEM,mapName=oracle.bi.system,keyName=system.user read)

Cause:- Bug in 7.9.6.4

Solution:-

Before installation of OBIA 7.9.6.4 , take backup of the file system-jazn-data.xml from the location D:\OBIEE11G\user_projects\domains\bifoundation_domain\config\fmwconfig and replace after the OBIA 7.9.6.4 installation in the same folder. 

Restart OBIEE services 

If you don't have the backup then follow the support document(Doc ID 1563795.1), where in you can find  system-jazn-data.xml available, which needs to be placed in fmwconfig folder and restart the services.