JBoss EAP 7.1 upgrade error

I am upgrading EAP (eap 6 to eap 7.1), while deploying war file in EAP server i am facing below error. Please help me on this. Thanks in advance.

ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 70) MSC000001: Failed to start service jboss.undertow.deployment.default-server.default-host./admin-ui: org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./admin-ui: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.NoSuchFieldError: REFLECTION
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:84)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
at org.jboss.threads.JBossThread.run(JBossThread.java:320)
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.NoSuchFieldError: REFLECTION
at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:241)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.startContext(UndertowDeploymentService.java:99)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:81)
... 6 more
Caused by: java.lang.RuntimeException: java.lang.NoSuchFieldError: REFLECTION
at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:292)
at io.undertow.servlet.core.ApplicationListeners.contextInitialized(ApplicationListeners.java:187)
at io.undertow.servlet.core.DeploymentManagerImpl$1.call(DeploymentManagerImpl.java:205)
at io.undertow.servlet.core.DeploymentManagerImpl$1.call(DeploymentManagerImpl.java:174)
at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:42)
at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
at org.wildfly.extension.undertow.security.SecurityContextThreadSetupAction.lambda$create$0(SecurityContextThreadSetupAction.java:105)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1508)
at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:239)
... 8 more
Caused by: java.lang.NoSuchFieldError: REFLECTION
at com.sun.xml.bind.v2.model.impl.RuntimeModelBuilder.(RuntimeModelBuilder.java:93)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:455)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.(JAXBContextImpl.java:303)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl.(JAXBContextImpl.java:142)
at com.sun.xml.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1174)
at com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:162)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:211)
at javax.xml.bind.ContextFinder.find(ContextFinder.java:392)
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:618)
at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:565)
at javax.xml.bind.JAXB$Cache.(JAXB.java:87)
at javax.xml.bind.JAXB.getContext(JAXB.java:114)
at javax.xml.bind.JAXB.unmarshal(JAXB.java:143)
at org.richfaces.javascript.ClientServiceConfigParser.parse(ClientServiceConfigParser.java:59)
at org.richfaces.javascript.ClientServiceConfigParser.parseConfig(ClientServiceConfigParser.java:48)
at org.richfaces.application.ValidatorModule.createClientScriptService(ValidatorModule.java:65)
at org.richfaces.application.ValidatorModule.configure(ValidatorModule.java:60)
at org.richfaces.application.ServicesFactoryImpl.init(ServicesFactoryImpl.java:27)
at org.richfaces.application.InitializationListener.createFactory(InitializationListener.java:130)
at org.richfaces.application.InitializationListener.onStart(InitializationListener.java:68)
at org.richfaces.application.InitializationListener.processEvent(InitializationListener.java:152)
at javax.faces.event.SystemEvent.processListener(SystemEvent.java:108)
at com.sun.faces.application.ApplicationImpl.processListeners(ApplicationImpl.java:2169)
at com.sun.faces.application.ApplicationImpl.invokeListenersFor(ApplicationImpl.java:2142)
at com.sun.faces.application.ApplicationImpl.publishEvent(ApplicationImpl.java:301)
at javax.faces.application.ApplicationWrapper.publishEvent(ApplicationWrapper.java:739)
at com.sun.faces.config.ConfigManager.publishPostConfigEvent(ConfigManager.java:704)
at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:270)
... 19 more