Unable to use principal name with spaces within the simple-permission-mapper (Elytron)

[standalone@localhost:9990 /] /subsystem=elytron/simple-permission-mapper=anonymous-permission-mapper:list-add(name=permission-mappings[0].principals, value= "John Doe" ) { "outcome" => "success" , "response-headers" => { "operation-requires-reload" => true , "process-state" => "reload-required" } } [standalone@localhost:9990 /] /subsystem=elytron/simple-permission-mapper=anonymous-permission-mapper:read-resource { "outcome" => "success" , "result" => { "mapping-mode" => "first" , "permission-mappings" => [{ "principals" => [ "anonymous" , "John Doe" ], "permissions" => [{ " class- name" => "org.wildfly.security.auth.permission.LoginPermission" }] }] }, "response-headers" => { "process-state" => "reload-required" } } [standalone@localhost:9990 /] reload [standalone@localhost:9990 /] /subsystem=elytron/simple-permission-mapper=anonymous-permission-mapper:read-resource { "outcome" => "success" , "result" => { "mapping-mode" => "first" , "permission-mappings" => [{ "principals" => [ "anonymous" , "John" , "Doe" ], "permissions" => [{ " class- name" => "org.wildfly.security.auth.permission.LoginPermission" }] }] } }