PBOX00354: Setting security roles ThreadLocal: null

I am using Jboss7.0.0 EAP , Grails application. My security context is being set by reading the user and roles file from the configuration.
Immediately after that "PBOX00354: Setting security roles ThreadLocal: null " gets printed in logs and securityContext and its properties like authenticates becomes null. As a result it goes in GrailsAnonymous user and sets the role as ROLE_ANONYMOUS. kindly suggest as I am not able to login