Exception 오류 확인 요청

선생님께서 하신 것과 똑같이 하였는데, 아래와 같이 오류가 나는데 어디를 손봐야 할까요? 

main 에서 아래 한줄만 딱 추가했습니다. 

Persistence.createEntityManagerFactory("hello");

Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/JAXBException

at org.hibernate.boot.spi.XmlMappingBinderAccess.<init>(XmlMappingBinderAccess.java:43)

at org.hibernate.boot.MetadataSources.<init>(MetadataSources.java:86)

at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:212)

at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:174)

at org.hibernate.jpa.boot.spi.Bootstrap.getEntityManagerFactoryBuilder(Bootstrap.java:76)

at org.hibernate.jpa.HibernatePersistenceProvider.getEntityManagerFactoryBuilder(HibernatePersistenceProvider.java:171)

at org.hibernate.jpa.HibernatePersistenceProvider.getEntityManagerFactoryBuilderOrNull(HibernatePersistenceProvider.java:119)

at org.hibernate.jpa.HibernatePersistenceProvider.getEntityManagerFactoryBuilderOrNull(HibernatePersistenceProvider.java:61)

at org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:50)

at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:79)

at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:54)

at hellojpa.JpaMain.main(JpaMain.java:10)