A change that was merged to WildFly main branch in the last day or two resulted in application client TCK test failures like the following noted in appclient.log:

2023-06-01 09:13:50,317 INFO [org.jboss.modules] (main) JBoss Modules version 2.1.0.Final
2023-06-01 09:13:50,666 INFO [org.jboss.msc] (main) JBoss MSC version 1.5.0.Final
2023-06-01 09:13:50,671 INFO [org.jboss.threads] (main) JBoss Threads version 2.4.0.Final
2023-06-01 09:13:50,751 INFO [org.jboss.as] (MSC service thread 1-2) WFLYSRV0049: WildFly Full 29.0.0.Alpha1-SNAPSHOT (WildFly Core 21.0.0.Beta1) starting
2023-06-01 09:13:50,922 INFO [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0282: Server is starting with graceful startup disabled; external requests may receive failure responses until startup completes.
2023-06-01 09:13:51,177 INFO [org.wildfly.security] (Controller Boot Thread) ELY00001: WildFly Elytron version 2.2.0.Final
2023-06-01 09:13:51,451 ERROR [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0055: Caught exception during boot: java.lang.IllegalArgumentException: WFLYCTL0502: No child resource called transaction could be found at address /subsystem=messaging-activemq/server=default/connection-factory=DURABLE_SUB_CONNECTION_FACTORY'.
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.persistence.yaml.YamlConfigurationExtension.processResource(YamlConfigurationExtension.java:280)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.persistence.yaml.YamlConfigurationExtension.processResource(YamlConfigurationExtension.java:271)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.persistence.yaml.YamlConfigurationExtension.processResource(YamlConfigurationExtension.java:174)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.persistence.yaml.YamlConfigurationExtension.processResource(YamlConfigurationExtension.java:271)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.persistence.yaml.YamlConfigurationExtension.processResource(YamlConfigurationExtension.java:174)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.persistence.yaml.YamlConfigurationExtension.processResource(YamlConfigurationExtension.java:174)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.persistence.yaml.YamlConfigurationExtension.processResource(YamlConfigurationExtension.java:180)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.persistence.yaml.YamlConfigurationExtension.processOperations(YamlConfigurationExtension.java:152)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.ModelControllerImpl.boot(ModelControllerImpl.java:532)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.AbstractControllerService.boot(AbstractControllerService.java:460)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.AbstractControllerService.boot(AbstractControllerService.java:431)
at org.jboss.as.server@21.0.0.Beta1//org.jboss.as.server.ServerService.boot(ServerService.java:466)
at org.jboss.as.server@21.0.0.Beta1//org.jboss.as.server.ServerService.boot(ServerService.java:408)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.AbstractControllerService$1.run(AbstractControllerService.java:370)
at java.base/java.lang.Thread.run(Thread.java:834)

2023-06-01 09:13:51,451 FATAL [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0056: Server boot has failed in an unrecoverable manner; exiting. See previous messages for details. - Server configuration file in use: appclient.xml
2023-06-01 09:13:51,459 INFO [org.jboss.as] (MSC service thread 1-2) WFLYSRV0050: WildFly Full 29.0.0.Alpha1-SNAPSHOT (WildFly Core 21.0.0.Beta1) stopped in 4ms
2023-06-01 09:13:52,098 INFO [org.jboss.modules] (main) JBoss Modules version 2.1.0.Final
2023-06-01 09:13:52,462 INFO [org.jboss.msc] (main) JBoss MSC version 1.5.0.Final
2023-06-01 09:13:52,466 INFO [org.jboss.threads] (main) JBoss Threads version 2.4.0.Final
2023-06-01 09:13:52,548 INFO [org.jboss.as] (MSC service thread 1-1) WFLYSRV0049: WildFly Full 29.0.0.Alpha1-SNAPSHOT (WildFly Core 21.0.0.Beta1) starting
2023-06-01 09:13:52,722 INFO [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0282: Server is starting with graceful startup disabled; external requests may receive failure responses until startup completes.
2023-06-01 09:13:52,955 INFO [org.wildfly.security] (Controller Boot Thread) ELY00001: WildFly Elytron version 2.2.0.Final
2023-06-01 09:13:53,210 ERROR [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0055: Caught exception during boot: java.lang.IllegalArgumentException: WFLYCTL0502: No child resource called transaction could be found at address /subsystem=messaging-activemq/server=default/connection-factory=DURABLE_SUB_CONNECTION_FACTORY'.
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.persistence.yaml.YamlConfigurationExtension.processResource(YamlConfigurationExtension.java:280)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.persistence.yaml.YamlConfigurationExtension.processResource(YamlConfigurationExtension.java:271)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.persistence.yaml.YamlConfigurationExtension.processResource(YamlConfigurationExtension.java:174)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.persistence.yaml.YamlConfigurationExtension.processResource(YamlConfigurationExtension.java:271)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.persistence.yaml.YamlConfigurationExtension.processResource(YamlConfigurationExtension.java:174)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.persistence.yaml.YamlConfigurationExtension.processResource(YamlConfigurationExtension.java:174)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.persistence.yaml.YamlConfigurationExtension.processResource(YamlConfigurationExtension.java:180)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.persistence.yaml.YamlConfigurationExtension.processOperations(YamlConfigurationExtension.java:152)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.ModelControllerImpl.boot(ModelControllerImpl.java:532)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.AbstractControllerService.boot(AbstractControllerService.java:460)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.AbstractControllerService.boot(AbstractControllerService.java:431)
at org.jboss.as.server@21.0.0.Beta1//org.jboss.as.server.ServerService.boot(ServerService.java:466)
at org.jboss.as.server@21.0.0.Beta1//org.jboss.as.server.ServerService.boot(ServerService.java:408)
at org.jboss.as.controller@21.0.0.Beta1//org.jboss.as.controller.AbstractControllerService$1.run(AbstractControllerService.java:370)
at java.base/java.lang.Thread.run(Thread.java:834)

2023-06-01 09:13:53,211 FATAL [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0056: Server boot has failed in an unrecoverable manner; exiting. See previous messages for details. - Server configuration file in use: appclient.xml
2023-06-01 09:13:53,217 INFO [org.jboss.as] (MSC service thread 1-7) WFLYSRV0050: WildFly Full 29.0.0.Alpha1-SNAPSHOT (WildFly Core 21.0.0.Beta1) stopped in 4ms
2023-06-01 09:13:57,607 INFO [org.jboss.modules] (main) JBoss Modules version 2.1.0.Final
2023-06-01 09:13:57,958 INFO [org.jboss.msc] (main) JBoss MSC version 1.5.0.Final
2023-06-01 09:13:57,962 INFO [org.jboss.threads] (main) JBoss Threads version 2.4.0.Final
2023-06-01 09:13:58,055 INFO [org.jboss.as] (MSC service thread 1-1) WFLYSRV0049: WildFly Full 29.0.0.Alpha1-SNAPSHOT (WildFly Core 21.0.0.Beta1) starting
2023-06-01 09:13:58,239 INFO [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0282: Server is starting with graceful startup disabled; external requests may receive failure responses until startup completes.
2023-06-01 09:13:58,478 INFO [org.wildfly.security] (Controller Boot Thread) ELY00001: WildFly Elytron version 2.2.0.Final
2023-06-01 09:13:58,798 ERROR [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0055: Caught exception during boot: java.lang.IllegalArgumentException: WFLYCTL0502: No child resource called transaction could be found at address /subsystem=messaging-activemq/server=default/connection-factory=DURABLE_SUB_CONNECTION_FACTORY'.

The appclient container terminates due to the above failure.