The RVH minor upgrade fails with java.lang.NoClassDefFoundError error

Issue

The RHV minor upgrade(4.2.6 to 4.2.8-5) was successfully executed, but ovirt-engine fails with following message in /var/log/ovirt-engine/console.log

java.lang.NoClassDefFoundError: org/wildfly/common/net/HostName
        at org.jboss.logmanager.ExtLogRecord.<init>(ExtLogRecord.java:87)
        at org.jboss.logmanager.Logger.log(Logger.java:796)
        at org.jboss.logging.JBossLogManagerLogger.doLogf(JBossLogManagerLogger.java:53)
        at org.jboss.logging.Logger.logf(Logger.java:2398)
        at org.jboss.msc.service.ServiceLogger_$logger.greeting(ServiceLogger_$logger.java:132)
        at org.jboss.msc.service.ServiceContainerImpl.<clinit>(ServiceContainerImpl.java:91)
        at org.jboss.msc.service.ServiceContainer$Factory.create(ServiceContainer.java:258)
        at org.jboss.as.server.BootstrapImpl$ShutdownHook.register(BootstrapImpl.java:224)
        at org.jboss.as.server.BootstrapImpl$ShutdownHook.access$100(BootstrapImpl.java:214)
        at org.jboss.as.server.BootstrapImpl.<init>(BootstrapImpl.java:66)
        at org.jboss.as.server.Bootstrap$Factory.newInstance(Bootstrap.java:275)
        at org.jboss.as.server.Main.main(Main.java:105)
        at org.jboss.modules.Module.run(Module.java:345)
        at org.jboss.modules.Main.main(Main.java:525)