Parse do Hibernate com Envers

Estou começando a utilizar o Envers para auditoria de dados e quando configurei os hibernate.cfg.xml com as notações necessárias começou a dar erro ao efetuar qualquer coisa com o objeto.
Quando tento salvar um objeto novo ele mostra o seguinte erro no console, será que alguém pode me auxiliar?

15:01:46,509 ERROR [XMLHelper] Error parsing XML: hibernate.cfg.xml(1) The processing instruction target matching "[xX][mM][lL]" is not allowed.
15:01:46,509 ERROR [OficioHibernateDAO] Could not parse configuration: hibernate.cfg.xml
org.hibernate.HibernateException: Could not parse configuration: hibernate.cfg.xml
	at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1494)
	at org.hibernate.cfg.Configuration.configure(Configuration.java:1428)
	at gov.pr.celepar.framework.database.HibernateUtilConfiguration.<init>(HibernateUtilConfiguration.java:42)
	at gov.pr.celepar.framework.database.HibernateUtilFactory.getInstance(HibernateUtilFactory.java:61)
	at gov.pr.celepar.framework.database.HibernateUtilFactory.getInstance(HibernateUtilFactory.java:36)
	at gov.pr.celepar.framework.database.HibernateUtil.currentSession(HibernateUtil.java:29)
	at gov.pr.iap.sga.dao.implementation.DocumentoHibernateDAO.listarPaginado(DocumentoHibernateDAO.java:66)
	at gov.pr.iap.sga.facade.ControleProcessoFacade.listarDocumentoPaginado(ControleProcessoFacade.java:62)
	at gov.pr.iap.sga.action.ManterDocumentoAction.gerarListaDocumentosJSON(ManterDocumentoAction.java:100)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:616)
	at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:269)
	at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:170)
	at gov.pr.celepar.framework.action.BaseDispatchAction.execute(BaseDispatchAction.java:69)
	at gov.pr.iap.sga.generico.action.BaseAction.execute(BaseAction.java:84)
	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)javascript:void(0);
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at gov.pr.celepar.util.filter.GzipFilter.doFilter(GzipFilter.java:32)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at gov.pr.celepar.sentinela.client.SegurancaFilter.handleLogin(SegurancaFilter.java:274)
	at gov.pr.celepar.sentinela.client.SegurancaFilter.doFilter(SegurancaFilter.java:174)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
	at java.lang.Thread.run(Thread.java:679)
Caused by: org.dom4j.DocumentException: Error on line 1 of document  : The processing instruction target matching "[xX][mM][lL]" is not allowed. Nested exception: The processing instruction target matching "[xX][mM][lL]" is not allowed.
	at org.dom4j.io.SAXReader.read(SAXReader.java:482)
	at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1484)
	... 47 more
15:01:46,510 INFO  [Configuration] configuring from resource: hibernate.cfg.xml
15:01:46,510 INFO  [Configuration] Configuration resource: hibernate.cfg.xml
15:01:46,511 ERROR [XMLHelper] Error parsing XML: hibernate.cfg.xml(1) The processing instruction target matching "[xX][mM][lL]" is not allowed.
15:01:46,512 ERROR [OficioHibernateDAO] Could not parse configuration: hibernate.cfg.xml
org.hibernate.HibernateException: Could not parse configuration: hibernate.cfg.xml
	at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1494)
	at org.hibernate.cfg.Configuration.configure(Configuration.java:1428)
	at gov.pr.celepar.framework.database.HibernateUtilConfiguration.<init>(HibernateUtilConfiguration.java:42)
	at gov.pr.celepar.framework.database.HibernateUtilFactory.getInstance(HibernateUtilFactory.java:61)
	at gov.pr.celepar.framework.database.HibernateUtilFactory.getInstance(HibernateUtilFactory.java:36)
	at gov.pr.celepar.framework.database.HibernateUtil.closeSession(HibernateUtil.java:50)
	at gov.pr.iap.sga.dao.implementation.DocumentoHibernateDAO.listarPaginado(DocumentoHibernateDAO.java:105)
	at gov.pr.iap.sga.facade.ControleProcessoFacade.listarDocumentoPaginado(ControleProcessoFacade.java:62)
	at gov.pr.iap.sga.action.ManterDocumentoAction.gerarListaDocumentosJSON(ManterDocumentoAction.java:100)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:616)
	at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:269)
	at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:170)
	at gov.pr.celepar.framework.action.BaseDispatchAction.execute(BaseDispatchAction.java:69)
	at gov.pr.iap.sga.generico.action.BaseAction.execute(BaseAction.java:84)
	at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
	at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
	at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
	at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at gov.pr.celepar.util.filter.GzipFilter.doFilter(GzipFilter.java:32)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at gov.pr.celepar.sentinela.client.SegurancaFilter.handleLogin(SegurancaFilter.java:274)
	at gov.pr.celepar.sentinela.client.SegurancaFilter.doFilter(SegurancaFilter.java:174)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
	at java.lang.Thread.run(Thread.java:679)
Caused by: org.dom4j.DocumentException: Error on line 1 of document  : The processing instruction target matching "[xX][mM][lL]" is not allowed. Nested exception: The processing instruction target matching "[xX][mM][lL]" is not allowed.
	at org.dom4j.io.SAXReader.read(SAXReader.java:482)
	at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1484)
	... 47 more

Poste seu arquivo de configuração. Estou achando que falta alguma declaração no início do seu xml, como por exemplo:

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE hibernate-configuration PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN" "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
	<session-factory>
		
 		<property name="connection.datasource">java:jdbc/sga</property> 
		
	        <property name="show_sql">true</property>
		<property name="hibernate.default_schema">xxx</property>
		<property name="dialect">org.hibernate.dialect.PostgreSQLDialect</property>
		
		<!-- Hibernate ENVERS Listener Configuration -->

		<listener class="org.hibernate.envers.event.AuditEventListener" type="post-insert"/>
		<listener class="org.hibernate.envers.event.AuditEventListener" type="post-update"/>
		<listener class="org.hibernate.envers.event.AuditEventListener" type="post-delete"/>
		<listener class="org.hibernate.envers.event.AuditEventListener" type="pre-collection-update"/>
		<listener class="org.hibernate.envers.event.AuditEventListener" type="pre-collection-remove"/>
		<listener class="org.hibernate.envers.event.AuditEventListener" type="post-collection-recreate"/>
		
... classes mapeadas...


		
	</session-factory>
</hibernate-configuration>