credential-reference capability-reference constraint

 "credential-reference" => {
    "type" => OBJECT,
    "description" => "Credential (from Credential Store) to authenticate on data source",
    "expressions-allowed" => false,
    "required" => false,
    "nillable" => true,
    "capability-reference" => "org.wildfly.security.credential-store",
    "access-constraints" => {"sensitive" => {
        "credential" => {"type" => "core"},
        "data-source-security" => {"type" => "datasources"}
    }},
    "value-type" => {
        "store" => {
            "type" => STRING,
            "description" => "The name of the credential store holding the alias to credential",
            "expressions-allowed" => false,
            "required" => false,
            "nillable" => true,
            "min-length" => 1L,
            "max-length" => 2147483647L
        },
        "alias" => {
            "type" => STRING,
            "description" => "The alias which denotes stored secret or credential in the store",
            "expressions-allowed" => false,
            "required" => false,
            "nillable" => true,
            "min-length" => 1L,
            "max-length" => 2147483647L
        },
        "type" => {
            "type" => STRING,
            "description" => "The type of credential this reference is denoting",
            "expressions-allowed" => false,
            "required" => false,
            "nillable" => true,
            "min-length" => 1L,
            "max-length" => 2147483647L
        },
        "clear-text" => {
            "type" => STRING,
            "description" => "Secret specified using clear text (check credential store way of supplying credential/secrets to services)",
            "expressions-allowed" => false,
            "required" => false,
            "nillable" => true,
            "min-length" => 1L,
            "max-length" => 2147483647L
        }
    },
    "access-type" => "read-write",
    "storage" => "configuration",
    "restart-required" => "all-services"
},