13:44:45,421 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 115) MSC000001: Failed to start service jboss.persistenceunit."wcs-Application.ear/wcs-Application.jar#x2010": org.jboss.msc.service.StartException in service jboss.persistenceunit."wcs-Application.ear/wcs-Application.jar#x2010": javax.persistence.PersistenceException: [PersistenceUnit: x2010] Unable to build Hibernate SessionFactory
	at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:195)
	at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:125)
	at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:662) [wildfly-elytron-1.6.6.Final-redhat-00001.jar:1.6.6.Final-redhat-00001]
	at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1.run(PersistenceUnitServiceImpl.java:209)
	at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
	at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1982)
	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
	at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_222]
	at org.jboss.threads.JBossThread.run(JBossThread.java:485)
Caused by: javax.persistence.PersistenceException: [PersistenceUnit: x2010] Unable to build Hibernate SessionFactory
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.persistenceException(EntityManagerFactoryBuilderImpl.java:1327)
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1253)
	at org.jboss.as.jpa.hibernate5.TwoPhaseBootstrapImpl.build(TwoPhaseBootstrapImpl.java:44)
	at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1$1.run(PersistenceUnitServiceImpl.java:167)
	... 9 more
Caused by: java.lang.NullPointerException
	at org.hibernate.loader.plan.build.internal.AbstractLoadPlanBuildingAssociationVisitationStrategy.foundCircularAssociation(AbstractLoadPlanBuildingAssociationVisitationStrategy.java:669)
	at org.hibernate.persister.walking.spi.MetamodelGraphWalker.visitAttributeDefinition(MetamodelGraphWalker.java:148)
	at org.hibernate.persister.walking.spi.MetamodelGraphWalker.visitAttributes(MetamodelGraphWalker.java:133)
	at org.hibernate.persister.walking.spi.MetamodelGraphWalker.visitCompositeDefinition(MetamodelGraphWalker.java:209)
	at org.hibernate.persister.walking.spi.MetamodelGraphWalker.visitCollectionIndex(MetamodelGraphWalker.java:240)
	at org.hibernate.persister.walking.spi.MetamodelGraphWalker.visitCollectionDefinition(MetamodelGraphWalker.java:217)
	at org.hibernate.persister.walking.spi.MetamodelGraphWalker.visitCollection(MetamodelGraphWalker.java:73)
	at org.hibernate.loader.plan.build.spi.MetamodelDrivenLoadPlanBuilder.buildRootCollectionLoadPlan(MetamodelDrivenLoadPlanBuilder.java:54)
	at org.hibernate.loader.collection.plan.AbstractLoadPlanBasedCollectionInitializer.<init>(AbstractLoadPlanBasedCollectionInitializer.java:61)
	at org.hibernate.loader.collection.plan.CollectionLoader.<init>(CollectionLoader.java:81)
	at org.hibernate.loader.collection.plan.CollectionLoader$Builder.byKey(CollectionLoader.java:74)
	at org.hibernate.loader.collection.plan.AbstractBatchingCollectionInitializerBuilder.buildNonBatchingLoader(AbstractBatchingCollectionInitializerBuilder.java:28)
	at org.hibernate.loader.collection.BatchingCollectionInitializerBuilder.createBatchingOneToManyInitializer(BatchingCollectionInitializerBuilder.java:85)
	at org.hibernate.persister.collection.OneToManyPersister.createCollectionInitializer(OneToManyPersister.java:513)
	at org.hibernate.persister.collection.AbstractCollectionPersister.postInstantiate(AbstractCollectionPersister.java:668)
	at java.util.concurrent.ConcurrentHashMap$ValuesView.forEach(ConcurrentHashMap.java:4707) [rt.jar:1.8.0_222]
	at org.hibernate.metamodel.internal.MetamodelImpl.initialize(MetamodelImpl.java:233)
	at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:295)
	at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:467)
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1250)
	... 11 more