Major Server can crash during the operations with elytron subsystem. Specifically - when I try create 'simple-permission-mapper' and perfrom server reload, then server crush with following error:
08:32:19,354 INFO [org.wildfly.extension.undertow] (MSC service thread 1-7) WFLYUT0004: Undertow 1.4.0.Final-redhat-1 stopping 08:32:19,359 INFO [org.jboss.as.mail.extension] (MSC service thread 1-1) WFLYMAIL0002: Unbound mail session [java:jboss/mail/Default] 08:32:19,366 INFO [org.jboss.as] (MSC service thread 1-5) WFLYSRV0050: JBoss EAP 7.1.0.Alpha1 (WildFly Core 3.0.0.Alpha7-redhat-1) stopped in 29ms 08:32:19,366 INFO [org.jboss.as] (MSC service thread 1-5) WFLYSRV0049: JBoss EAP 7.1.0.Alpha1 (WildFly Core 3.0.0.Alpha7-redhat-1) starting 08:32:19,421 INFO [org.wildfly.extension.elytron] (ServerService Thread Pool -- 30) WFLYELY00001: Activating Elytron Subsystem Elytron Version=1.1.0.Beta8, Subsystem Version=1.0.0.Alpha9 08:32:19,421 INFO [org.jboss.as.controller.management-deprecated] (ServerService Thread Pool -- 27) WFLYCTL0028: Attribute 'security-realm' in the resource at address '/subsystem=undertow/server=default-server/https-listener=https' is deprecated, and may be removed in future version. See the attribute description in the output of the read-resource-description operation to learn more about the deprecation. 08:32:19,422 ERROR [org.jboss.as.controller.management-operation] (ServerService Thread Pool -- 30) WFLYCTL0013: Operation ("add") failed - address: ([ ("subsystem" => "elytron"), ("simple-permission-mapper" => "perm-mapper") ]) - failure description: "WFLYCTL0155: permissions may not be null" 08:32:19,431 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) "WFLYCTL0193: Failed executing subsystem elytron boot operations" 08:32:19,431 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("parallel-subsystem-boot") failed - address: ([]) - failure description: "\"WFLYCTL0193: Failed executing subsystem elytron boot operations\"" 08:32:19,434 FATAL [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0056: Server boot has failed in an unrecoverable manner; exiting. See previous messages for details. 08:32:19,440 INFO [org.jboss.as] (MSC service thread 1-1) WFLYSRV0050: JBoss EAP 7.1.0.Alpha1 (WildFly Core 3.0.0.Alpha7-redhat-1) stopped in 1ms
See 'Steps to reproduce' field. This can be easily reproducible by that steps always.
From the error it seems that 'permissions' for 'permission-mappings' should be required during add operation. But at least server should print some error but not crash at all.
