java.lang.IllegalArgumentException: A fault with name already exists in this operation

Issue

• We are using JAX-WS webservice built using CXF and trying to deploy on EAP 6.2.0. It is failing to deploy with the following message,

Caused by: java.lang.IllegalArgumentException: A fault with name [Exception] already exists in this operation
    at org.apache.cxf.service.model.OperationInfo.addFault(OperationInfo.java:147)
    at org.apache.cxf.service.model.UnwrappedOperationInfo.addFault(UnwrappedOperationInfo.java:44)
    at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.addFault(ReflectionServiceFactoryBean.java:2105)
    at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.initializeFaults(ReflectionServiceFactoryBean.java:2073)
    at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.createMessageParts(ReflectionServiceFactoryBean.java:1645)
    at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.createOperation(ReflectionServiceFactoryBean.java:1013)
    at org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.createOperation(JaxWsServiceFactoryBean.java:631)
    at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.createInterface(ReflectionServiceFactoryBean.java:990)
    at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.buildServiceFromClass(ReflectionServiceFactoryBean.java:481)
    at org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.buildServiceFromClass(JaxWsServiceFactoryBean.java:693)
    at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.initializeServiceModel(ReflectionServiceFactoryBean.java:550)
    at org.apache.cxf.service.factory.ReflectionServiceFactoryBean.create(ReflectionServiceFactoryBean.java:265)
    at org.apache.cxf.jaxws.support.JaxWsServiceFactoryBean.create(JaxWsServiceFactoryBean.java:204)
    at org.apache.cxf.frontend.AbstractWSDLBasedEndpointFactory.createEndpoint(AbstractWSDLBasedEndpointFactory.java:102)
    at org.apache.cxf.frontend.ServerFactoryBean.create(ServerFactoryBean.java:159)
    at org.apache.cxf.jaxws.JaxWsServerFactoryBean.create(JaxWsServerFactoryBean.java:211)
    at org.apache.cxf.jaxws.EndpointImpl.getServer(EndpointImpl.java:456)
    at org.apache.cxf.jaxws.EndpointImpl.doPublish(EndpointImpl.java:334)
    ... 13 more