hibernateを使用してec2とrds(mysql)を接続したいです。しかし、「Unable to build Hibernate SessionFactory」とエラーが出ます。

mysqlを使用したデータの登録、参照、削除などが可能なwebアプリケーションを作成中です。
現状はローカル環境では、動作が上手くいっています。が、ec2にデプロイしたところ、データの登録時にエラーが出ます。
構成としては、ec2にアプリケーションを配置し、rds内のmysqlに接続する構成です。

エラー内容はこちらです。

HTTPステータス 500 – Internal Server Error
タイプ 例外報告

メッセージ [PersistenceUnit: hotel_booking_system] Unable to build Hibernate SessionFactory

説明 サーバーは予期しない条件に遭遇しました。それはリクエストの実行を妨げます。

例外

javax.persistence.PersistenceException: [PersistenceUnit: hotel_booking_system] Unable to build Hibernate SessionFactory
	org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.persistenceException(EntityManagerFactoryBuilderImpl.java:970)
	org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:895)
	org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:58)
	javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:55)
	javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:39)
	utils.DBUtil.getEntityManagerFactory(DBUtil.java:16)
	utils.DBUtil.createEntityManager(DBUtil.java:12)
	controllers.login.LoginServlet.doPost(LoginServlet.java:57)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:681)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	filters.EncodingFilter.doFilter(EncodingFilter.java:40)
根本原因

org.hibernate.MappingException: Could not get constructor for org.hibernate.persister.entity.SingleTableEntityPersister
	org.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister(PersisterFactoryImpl.java:123)
	org.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister(PersisterFactoryImpl.java:77)
	org.hibernate.metamodel.internal.MetamodelImpl.initialize(MetamodelImpl.java:128)
	org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:300)
	org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:460)
	org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:892)
	org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:58)
	javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:55)
	javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:39)
	utils.DBUtil.getEntityManagerFactory(DBUtil.java:16)
	utils.DBUtil.createEntityManager(DBUtil.java:12)
	controllers.login.LoginServlet.doPost(LoginServlet.java:57)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:681)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	filters.EncodingFilter.doFilter(EncodingFilter.java:40)
根本原因

org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]
	org.hibernate.tuple.entity.EntityTuplizerFactory.constructTuplizer(EntityTuplizerFactory.java:91)
	org.hibernate.tuple.entity.EntityTuplizerFactory.constructDefaultTuplizer(EntityTuplizerFactory.java:116)
	org.hibernate.tuple.entity.EntityMetamodel.<init>(EntityMetamodel.java:385)
	org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:519)
	org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:124)
	java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
	java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
	java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480)
	org.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister(PersisterFactoryImpl.java:96)
	org.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister(PersisterFactoryImpl.java:77)
	org.hibernate.metamodel.internal.MetamodelImpl.initialize(MetamodelImpl.java:128)
	org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:300)
	org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:460)
	org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:892)
	org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:58)
	javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:55)
	javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:39)
	utils.DBUtil.getEntityManagerFactory(DBUtil.java:16)
	utils.DBUtil.createEntityManager(DBUtil.java:12)
	controllers.login.LoginServlet.doPost(LoginServlet.java:57)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:681)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	filters.EncodingFilter.doFilter(EncodingFilter.java:40)
根本原因

java.lang.reflect.InvocationTargetException
	java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
	java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
	java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480)
	org.hibernate.tuple.entity.EntityTuplizerFactory.constructTuplizer(EntityTuplizerFactory.java:88)
	org.hibernate.tuple.entity.EntityTuplizerFactory.constructDefaultTuplizer(EntityTuplizerFactory.java:116)
	org.hibernate.tuple.entity.EntityMetamodel.<init>(EntityMetamodel.java:385)
	org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:519)
	org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:124)
	java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
	java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499)
	java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480)
	org.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister(PersisterFactoryImpl.java:96)
	org.hibernate.persister.internal.PersisterFactoryImpl.createEntityPersister(PersisterFactoryImpl.java:77)
	org.hibernate.metamodel.internal.MetamodelImpl.initialize(MetamodelImpl.java:128)
	org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:300)
	org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:460)
	org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:892)
	org.hibernate.jpa.HibernatePersistenceProvider.createEntityManagerFactory(HibernatePersistenceProvider.java:58)
	javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:55)
	javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:39)
	utils.DBUtil.getEntityManagerFactory(DBUtil.java:16)
	utils.DBUtil.createEntityManager(DBUtil.java:12)
	controllers.login.LoginServlet.doPost(LoginServlet.java:57)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:681)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:764)
	org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	filters.EncodingFilter.doFilter(EncodingFilter.java:40)