Seeing ClassCastException: org.dom4j.DocumentFactory cannot be cast to org.dom4j.DocumentFactory after applying JBoss EAP 7.1 CP6

Issue

• We are seeing this exception after applying JBoss EAP 7.1 CP6 , out application is packaging dom4j.jar and the application has a JPA persistence unit in it.

Caused by: java.lang.ClassCastException: org.dom4j.DocumentFactory cannot be cast to org.dom4j.DocumentFactory
        at org.dom4j.DocumentFactory.getInstance(DocumentFactory.java:92)
        at org.hibernate.internal.util.xml.XMLHelper$1.doWork(XMLHelper.java:33)
        at org.hibernate.internal.util.xml.XMLHelper$1.doWork(XMLHelper.java:27)
        at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.workWithClassLoader(ClassLoaderServiceImpl.java:358)
        at org.hibernate.internal.util.xml.XMLHelper.<init>(XMLHelper.java:26)
        at org.hibernate.envers.boot.internal.EnversServiceImpl.initialize(EnversServiceImpl.java:115)
        at org.hibernate.envers.boot.internal.AdditionalJaxbMappingProducerImpl.produceAdditionalMappings(AdditionalJaxbMappingProducerImpl.java:99)
        at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:288)
        at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:848)
        at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:875)
        at org.jboss.as.jpa.hibernate5.TwoPhaseBootstrapImpl.build(TwoPhaseBootstrapImpl.java:44)
        at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:167)
        ... 7 more