joiner attribute of concatenating-principal-decoder (Elytron subsystem) is marked as nillable but can not be ------------------------------------------------------------------------------------------------------------ Key: WFLY-7491 URL: https://issues.jboss.org/browse/WFLY-7491 Project: WildFly Issue Type: Bug Components: Security Reporter: Ondrej Kotek Assignee: Jan Kalina Labels: user_experience Fix For: 11.0.0.Alpha1 *Issue description:* After having undefined the {{joiner}} attribute of {{concatenating-principal-decoder}} in Elytron subsystem, the server does not start. The {{joiner}} attribute is declared as {{"nillable" => true}} in CLI, but can not be -- see _Steps to Reproce_ that results in {noformat} 14:50:29,357 ERROR [org.jboss.as.controller] (Controller Boot Thread) OPVDX001: Validation error in standalone-elytron.xml =========================== 346: <permission class-name="org.wildfly.security.auth.permission.LoginPermission"/> 347: </constant-permission-mapper> 348: <concatenating-principal-decoder name="concatPrincDecoder"> ^^^^ 'concatenating-principal-decoder' is missing one or more required attributes All of the following are required: joiner 349: <principal-decoder name="constPrincDecoder"/> 350: <principal-decoder name="constPrincDecoder"/> 351: </concatenating-principal-decoder> The underlying error message was: > ParseError at [row,col]:[348,17] > Message: WFLYCTL0133: Missing required attribute(s): joiner ================================================================================ 14:50:29,357 ERROR [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0055: Caught exception during boot: org.jboss.as.controller.persistence.ConfigurationPersistenceException: WFLYCTL0085: Failed to parse configuration at org.jboss.as.controller.persistence.XmlConfigurationPersister.load(XmlConfigurationPersister.java:143) at org.jboss.as.server.ServerService.boot(ServerService.java:355) at org.jboss.as.controller.AbstractControllerService$1.run(AbstractControllerService.java:302) at java.lang.Thread.run(Thread.java:745) 14:50:29,358 FATAL [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0056: Server boot has failed in an unrecoverable manner; exiting. See previous messages for details. {noformat} The {{joiner}} attribute has {{use="required"}} in _wildfly-elytron_1_0.xsd_. *Suggestions for improvement:* In case it makes sense to have no joiner, the joiner should not be required. (There could be reasonable cases.) Otherwise, the CLI {{joiner}} attribute should be declared as {{"nillable" => false}}. The XSD {{joiner}} attribute should have defined {{default="."}}.