JPA examples working flawlessly with Hibernate 4 generation throw exceptions when being run against 5.0 Beta 1.

On 5.0 the following exception is thrown:

Caused by: org.hibernate.tool.schema.spi.SchemaManagementException: BIG PROBLEM
    at org.hibernate.tool.schema.internal.SchemaMigratorImpl.doMigrationToTargets(SchemaMigratorImpl.java:128)
    at org.hibernate.tool.schema.internal.SchemaMigratorImpl.doMigration(SchemaMigratorImpl.java:76)
    at org.hibernate.tool.hbm2ddl.SchemaUpdate.execute(SchemaUpdate.java:146)
    at org.hibernate.tool.hbm2ddl.SchemaUpdate.execute(SchemaUpdate.java:114)
    at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:456)
    at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:151)
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:799)
    ... 45 more

Steps to reproduce:

• git clone https://github.com/spring-projects/spring-data-examples
• cd spring-data-examples/jpa
• git checkout hiberate-5
• mvn clean test

The master branch is using a recent 4.3.8 and work fine.