### Relevant articles

- [Guide to @Immutable Annotation in Hibernate](http://www.baeldung.com/hibernate-immutable)
- [Hibernate Many to Many Annotation Tutorial](http://www.baeldung.com/hibernate-many-to-many)
- [Programmatic Transactions in the Spring TestContext Framework](http://www.baeldung.com/spring-test-programmatic-transactions)
- [Hibernate Criteria Queries](http://www.baeldung.com/hibernate-criteria-queries)