IndexOutOfBoundsException in org.jboss.as.controller.PathAddress.getElement()

18:16:43,769 INFO  [org.jboss.arquillian.testenricher.cdi.container.BeanManagerProducer] (pool-4-thread-1) BeanManager not found.
18:16:43,795 ERROR [org.jboss.as.controller.management-operation] (pool-4-thread-1) JBAS014612: Operation ("add") failed - address: ([
    ("host" => "master"),
    ("core-service" => "management"),
    ("security-realm" => "ManagementRealm"),
    ("authentication" => "properties")
]): java.lang.IndexOutOfBoundsException: Index: 4, Size: 4
        at java.util.ArrayList.RangeCheck(ArrayList.java:547) [rt.jar:1.6.0_26]
        at java.util.ArrayList.get(ArrayList.java:322) [rt.jar:1.6.0_26]
        at java.util.Collections$UnmodifiableList.get(Collections.java:1154) [rt.jar:1.6.0_26]
        at org.jboss.as.controller.PathAddress.getElement(PathAddress.java:157) [jboss-as-controller-7.1.0.Final-SNAPSHOT.jar:7.1.0.Final-SNAPSHOT]
        at org.jboss.as.domain.management.security.AuthenticationValidatingHandler.createOperation(AuthenticationValidatingHandler.java:59)
        at org.jboss.as.domain.management.security.SecurityRealmChildAddHandler.updateModel(SecurityRealmChildAddHandler.java:57)
        at org.jboss.as.controller.RestartParentResourceHandlerBase.execute(RestartParentResourceHandlerBase.java:51) [jboss-as-controller-7.1.0.Final-SNAPSHOT.jar:7.1.0.Final-SNAPSHOT]