Failed to load module "org.jboss.logmanager.ext" for formatter "OPENSHIFT"

Issue

When upgrading JBoss EAP for OpenShift from 7.1 or earlier to 7.2 or later, and if you bring 7.1-based standalone-openshift.xml into 7.2 or later, the container fails to start with the following error:

06:10:28,452 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("add") failed - address: ([
    ("subsystem" => "logging"),
    ("custom-formatter" => "OPENSHIFT")
]): java.lang.IllegalArgumentException: Failed to load module "org.jboss.logmanager.ext" for formatter "OPENSHIFT"
    at org.jboss.logmanager.config.AbstractPropertyConfiguration.<init>(AbstractPropertyConfiguration.java:65) [jboss-logmanager-2.1.14.Final-redhat-00001.jar:2.1.14.Final-redhat-00001]
    at org.jboss.logmanager.config.FormatterConfigurationImpl.<init>(FormatterConfigurationImpl.java:30) [jboss-logmanager-2.1.14.Final-redhat-00001.jar:2.1.14.Final-redhat-00001]
    at org.jboss.logmanager.config.LogContextConfigurationImpl.addFormatterConfiguration(LogContextConfigurationImpl.java:172) [jboss-logmanager-2.1.14.Final-redhat-00001.jar:2.1.14.Final-redhat-00001]
    at org.jboss.as.logging.logmanager.ConfigurationPersistence.addFormatterConfiguration(ConfigurationPersistence.java:215)
    at org.jboss.as.logging.formatters.CustomFormatterResourceDefinition$2.performRuntime(CustomFormatterResourceDefinition.java:113)
    at org.jboss.as.logging.LoggingOperations$LoggingAddOperationStepHandler.performRuntime(LoggingOperations.java:186)
    at org.jboss.as.controller.AbstractAddStepHandler.performRuntime(AbstractAddStepHandler.java:338) [wildfly-controller-10.1.2.SP1-redhat-00001.jar:10.1.2.SP1-redhat-00001]
    at org.jboss.as.controller.AbstractAddStepHandler$1.execute(AbstractAddStepHandler.java:159) [wildfly-controller-10.1.2.SP1-redhat-00001.jar:10.1.2.SP1-redhat-00001]
    at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:999) [wildfly-controller-10.1.2.SP1-redhat-00001.jar:10.1.2.SP1-redhat-00001]
    at org.jboss.as.controller.AbstractOperationContext.processStages(AbstractOperationContext.java:743) [wildfly-controller-10.1.2.SP1-redhat-00001.jar:10.1.2.SP1-redhat-00001]
    at org.jboss.as.controller.AbstractOperationContext.executeOperation(AbstractOperationContext.java:467) [wildfly-controller-10.1.2.SP1-redhat-00001.jar:10.1.2.SP1-redhat-00001]
    at org.jboss.as.controller.OperationContextImpl.executeOperation(OperationContextImpl.java:1413) [wildfly-controller-10.1.2.SP1-redhat-00001.jar:10.1.2.SP1-redhat-00001]
    at org.jboss.as.controller.ModelControllerImpl.boot(ModelControllerImpl.java:521) [wildfly-controller-10.1.2.SP1-redhat-00001.jar:10.1.2.SP1-redhat-00001]
    at org.jboss.as.controller.AbstractControllerService.boot(AbstractControllerService.java:472) [wildfly-controller-10.1.2.SP1-redhat-00001.jar:10.1.2.SP1-redhat-00001]
    at org.jboss.as.controller.AbstractControllerService.boot(AbstractControllerService.java:434) [wildfly-controller-10.1.2.SP1-redhat-00001.jar:10.1.2.SP1-redhat-00001]
    at org.jboss.as.server.ServerService.boot(ServerService.java:435) [wildfly-server-10.1.2.SP1-redhat-00001.jar:10.1.2.SP1-redhat-00001]
    at org.jboss.as.server.ServerService.boot(ServerService.java:394) [wildfly-server-10.1.2.SP1-redhat-00001.jar:10.1.2.SP1-redhat-00001]
    at org.jboss.as.controller.AbstractControllerService$1.run(AbstractControllerService.java:374) [wildfly-controller-10.1.2.SP1-redhat-00001.jar:10.1.2.SP1-redhat-00001]
    at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_242]
Caused by: org.jboss.modules.ModuleNotFoundException: org.jboss.logmanager.ext
    at org.jboss.modules.ModuleLoader.loadModule(ModuleLoader.java:297) [jboss-modules.jar:1.9.1.Final-redhat-00001]
    at org.jboss.modules.ModuleLoader.loadModule(ModuleLoader.java:283) [jboss-modules.jar:1.9.1.Final-redhat-00001]
    at org.jboss.logmanager.config.AbstractPropertyConfiguration$ModuleFinder.getClassLoader(AbstractPropertyConfiguration.java:560) [jboss-logmanager-2.1.14.Final-redhat-00001.jar:2.1.14.Final-redhat-00001]
    at org.jboss.logmanager.config.AbstractPropertyConfiguration.<init>(AbstractPropertyConfiguration.java:63) [jboss-logmanager-2.1.14.Final-redhat-00001.jar:2.1.14.Final-redhat-00001]
    ... 18 more

06:10:28,519 FATAL [org.jboss.as.server] (Controller Boot Thread) WFLYSRV0056: Server boot has failed in an unrecoverable manner; exiting. See previous messages for details.