jaas:users throws nullpointer exception

Issue

• Completed new installation and did a fabric:create. jaas:users throws nullpointer exception

JBossFuse:karaf@em_env10_621r2> jaas:realms
Index Realm                Module Class
    1 karaf                io.fabric8.jaas.ZookeeperLoginModule
JBossFuse:karaf@em_env10_621r2> jaas:manage --index 1
JBossFuse:karaf@em_env10_621r2> jaas:users
User Name            Group                Role
admin                admin                admin
admin                admin                manager
admin                admin                viewer
admin                admin                Operator
admin                admin                Maintainer
admin                admin                Deployer
admin                admin                Auditor
admin                admin                Administrator
admin                admin                SuperUser
admin                                     Monitor
Error executing command: java.lang.NullPointerException