I am unable to configure new security realm for domain. 

Reproduce: 
 - start out-of-box domain
 - connect to CLI
 - create new security realm
[domain@localhost:9999 /] /host=master/core-service=management/security-realm=JBossTest:add
 - run any of following:
[domain@localhost:9999 /] /host=master/core-service=management/security-realm=JBossTest/authentication=properties:add(path=application-users.properties, relative-to=jboss.server.config.dir
[domain@localhost:9999 /] /host=master/core-service=management/security-realm=JBossTest/authentication=jaas:add(name=JBossTestDomain)
[domain@localhost:9999 /] /host=master/core-service=management/security-realm=JBossTest/authentication=local:add(allowed-users="*", default-user="$local")

CLI command will result in:
{
    "outcome" => "failed",
    "result" => undefined,
    "failure-description" => "JBAS010839: Operation failed or was rolled back on all servers.",
    "rolled-back" => true,
    "server-groups" => {"main-server-group" => {"host" => {"master" => {
        "server-one" => {"response" => {
            "outcome" => "failed",
            "failure-description" => "JBAS014883: No resource definition is registered for address [
    (\"host\" => \"master\"),
    (\"core-service\" => \"management\"),
    (\"security-realm\" => \"JBossTest\"),
    (\"authentication\" => \"local\")
]",
            "rolled-back" => true
        }},
        "server-two" => {"response" => {
            "outcome" => "failed",
            "failure-description" => "JBAS014883: No resource definition is registered for address [
    (\"host\" => \"master\"),
    (\"core-service\" => \"management\"),
    (\"security-realm\" => \"JBossTest\"),
    (\"authentication\" => \"local\")
]",
            "rolled-back" => true
        }}
    }}}}
}

This was working with 6.1.1.GA