ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 72) MSC000001: Failed to start service jboss.persistenceunit."optaweb-employee-rostering-7.19.0-SNAPSHOT.war#optaweb-employee-rostering-persistence-unit": org.jboss.msc.service.StartException in service jboss.persistenceunit."optaweb-employee-rostering-7.19.0-SNAPSHOT.war#optaweb-employee-rostering-persistence-unit": org.hibernate.AnnotationException: Unknown GenerationType: ${org.optaweb.employeerostering.persistence.id.generator:AUTO}. Activate schema validation for more information
	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:650)
	at org.jboss.as.jpa.service.PersistenceUnitServiceImpl$1.run(PersistenceUnitServiceImpl.java:209)
	at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
	at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1985)
	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1487)
	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1378)
	at java.lang.Thread.run(Thread.java:748)
	at org.jboss.threads.JBossThread.run(JBossThread.java:485)
Caused by: org.hibernate.AnnotationException: Unknown GenerationType: ${org.optaweb.employeerostering.persistence.id.generator:AUTO}. Activate schema validation for more information
	at org.hibernate.cfg.annotations.reflection.JPAOverriddenAnnotationReader.buildGeneratedValue(JPAOverriddenAnnotationReader.java:1635)
	at org.hibernate.cfg.annotations.reflection.JPAOverriddenAnnotationReader.getId(JPAOverriddenAnnotationReader.java:1541)
	at org.hibernate.cfg.annotations.reflection.JPAOverriddenAnnotationReader.initAnnotations(JPAOverriddenAnnotationReader.java:411)
	at org.hibernate.cfg.annotations.reflection.JPAOverriddenAnnotationReader.isAnnotationPresent(JPAOverriddenAnnotationReader.java:330)
	at org.hibernate.annotations.common.reflection.java.JavaXAnnotatedElement.isAnnotationPresent(JavaXAnnotatedElement.java:43)
	at org.hibernate.annotations.common.reflection.java.JavaXMember.isAnnotationPresent(JavaXMember.java:26)
	at org.hibernate.cfg.InheritanceState.determineDefaultAccessType(InheritanceState.java:259)
	at org.hibernate.cfg.InheritanceState.getElementsToProcess(InheritanceState.java:211)
	at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:778)
	at org.hibernate.boot.model.source.internal.annotations.AnnotationMetadataSourceProcessorImpl.processEntityHierarchies(AnnotationMetadataSourceProcessorImpl.java:250)
	at org.hibernate.boot.model.process.spi.MetadataBuildingProcess$1.processEntityHierarchies(MetadataBuildingProcess.java:231)
	at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:274)
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:904)
	at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:935)
	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