21:35:32,633 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 78) MSC000001: Failed to start service jboss.persistenceunit."jpa_cfgfile.jar#mypc".__FIRST_PHASE__: org.jboss.msc.service.StartException in service jboss.persistenceunit."jpa_cfgfile.jar#mypc".__FIRST_PHASE__: org.hibernate.metamodel.source.MappingException: Error accessing stax stream
    at org.jboss.as.jpa.service.PhaseOnePersistenceUnitServiceImpl$1$1.run(PhaseOnePersistenceUnitServiceImpl.java:121)
    at org.jboss.as.jpa.service.PhaseOnePersistenceUnitServiceImpl$1$1.run(PhaseOnePersistenceUnitServiceImpl.java:103)
    at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:653)
    at org.jboss.as.jpa.service.PhaseOnePersistenceUnitServiceImpl$1.run(PhaseOnePersistenceUnitServiceImpl.java:130)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)
    at org.jboss.threads.JBossThread.run(JBossThread.java:320)
Caused by: org.hibernate.metamodel.source.MappingException: Error accessing stax stream
    at org.hibernate.service.internal.JaxbProcessor.unmarshal(JaxbProcessor.java:122)
    at org.hibernate.service.internal.JaxbProcessor.unmarshal(JaxbProcessor.java:81)
    at org.hibernate.service.ConfigLoader.loadConfigXmlResource(ConfigLoader.java:69)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.mergePropertySources(EntityManagerFactoryBuilderImpl.java:549)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:214)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:188)
    at org.hibernate.jpa.boot.spi.Bootstrap.getEntityManagerFactoryBuilder(Bootstrap.java:45)
    at org.hibernate.jpa.boot.spi.Bootstrap.getEntityManagerFactoryBuilder(Bootstrap.java:57)
    at org.jboss.as.jpa.hibernate4.TwoPhaseBootstrapImpl.<init>(TwoPhaseBootstrapImpl.java:38)
    at org.jboss.as.jpa.hibernate4.HibernatePersistenceProviderAdaptor.getBootstrap(HibernatePersistenceProviderAdaptor.java:173)
    at org.jboss.as.jpa.service.PhaseOnePersistenceUnitServiceImpl.createContainerEntityManagerFactoryBuilder(PhaseOnePersistenceUnitServiceImpl.java:243)
    at org.jboss.as.jpa.service.PhaseOnePersistenceUnitServiceImpl.access$800(PhaseOnePersistenceUnitServiceImpl.java:60)
    at org.jboss.as.jpa.service.PhaseOnePersistenceUnitServiceImpl$1$1.run(PhaseOnePersistenceUnitServiceImpl.java:118)
    ... 7 more
Caused by: com.ctc.wstx.exc.WstxParsingException: (was java.io.FileNotFoundException) http://hibernate.org/dtd/hibernate-configuration-3.0.dtd
 at [row,col {unknown-source}]: [4,63]
    at com.ctc.wstx.sr.StreamScanner.constructWfcException(StreamScanner.java:614)
    at com.ctc.wstx.sr.StreamScanner.throwParseError(StreamScanner.java:487)
    at com.ctc.wstx.sr.ValidatingStreamReader.findDtdExtSubset(ValidatingStreamReader.java:478)
    at com.ctc.wstx.sr.ValidatingStreamReader.finishDTD(ValidatingStreamReader.java:341)
    at com.ctc.wstx.sr.BasicStreamReader.finishToken(BasicStreamReader.java:3756)
    at com.ctc.wstx.sr.BasicStreamReader.nextFromProlog(BasicStreamReader.java:2089)
    at com.ctc.wstx.sr.BasicStreamReader.next(BasicStreamReader.java:1131)
    at org.codehaus.stax2.ri.Stax2EventReaderImpl.peek(Stax2EventReaderImpl.java:367)
    at org.hibernate.service.internal.JaxbProcessor.unmarshal(JaxbProcessor.java:118)
    ... 19 more