[ https://issues.jboss.org/browse/WFLY-6137?page=com.atlassian.jira.plugin.... ] Karl Nicholas commented on WFLY-6137: ------------------------------------- The reason that dom4j.jar ended up in my .war file is that I included hibernate-entitymanager, version 5.0.7.Final in my pom.xml. I didn't even need it because I took the class that was using it out of the application and rebuilt everything. Background, I started with a new Java EE Web project, from Jboss developer tools (9.1.0.Beta2). I was created a class in my project to generate the database schema, which it seems reasonable to do. So, for that needed hibernate-entitymanger.jar, and that pulls in the dom4j-1.6.1.jar. Total jar file list when including, and only including without needing, hibernate-entitymanager.jar in my project pom.xml is as follows. Without including it I can build an application without any in the WEB-INF/lib directory. antlr-2.7.7.jar dom4j-1.6.1.jar geronimo-jta_1.1_spec-1.1.1.jar hibernate-commons-annotations-5.0.1.Final.jar hibernate-core-5.0.7.Final.jar hibernate-entitymanager-5.0.7.Final.jar hibernate-jpa-2.1-api-1.0.0.Final.jar jandex-2.0.0.Final.jar javaassist-3.18.1-GA.jar jboss-logging-3.3.0.Final.jar xml-apis-1.0.b2.jar Stack trace: Caused by: java.lang.ClassCastException: org.dom4j.DocumentFactory cannot be cast to org.dom4j.DocumentFactory at org.dom4j.DocumentFactory.getInstance(DocumentFactory.java:97) 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:342) 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:847) at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:874) at org.jboss.as.jpa.hibernate5.TwoPhaseBootstrapImpl.build(TwoPhaseBootstrapImpl.java:44) at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:154) ... 7 more Hope this helps. -- This message was sent by Atlassian JIRA (v6.4.11#64026)