WebToUndertow default-virtual-host remains unchanged after migration from web subsystem having defined default-virtual-server ----------------------------------------------------------------------------------------------------------------------------- Key: WFLY-8555 URL: https://issues.jboss.org/browse/WFLY-8555 Project: WildFly Issue Type: Bug Components: Web (Undertow) Affects Versions: 11.0.0.Alpha1 Reporter: Tomaz Cerar Assignee: Tomaz Cerar Priority: Blocker Thanks to [JBEAP-10033] and discussion at [JBEAP-10200] there was discovered issue related to virtual hosts migration which was hidden till now. When migrating web -> undertow for migrating virtual hosts. In web there is on subsystem level default-virtual-server option, which per description corresponds more to the one in undertow default-host option on server level and currently it is migrated to it. Still in Undertow there is also default-virtual-host at undertow subsystem level which stays unchanged. Now with capabilities implemented on Undertow subsystem it points out that it is actually invalid configuration as the default-virtual-host points to non existing host (in case of the original virtual server being named differently than default-host), resulting in server failing to start afterwards \[1\] without any migration warning shown. The migration operation should update both default-virtual-host at subsystem level and default-host at server level. As there is no migration warning and the resulting configuration causes server start to fail, marking as blocker. \[1\] {noformat} 14:48:35,386 ERROR [org.jboss.as.controller] (management-handler-thread - 2) WFLYCTL0362: Capabilities required by resource '/subsystem=undertow' are not available: org.wildfly.undertow.host.default-server.default-host; There are no known registration points which can provide this capability. {noformat}