Spring comes with the powerful type conversion API.Spring API happens to be very similar to the Camel type converter API. UserDetailsServiceImpl the problem was that I had set up the Spring Boot is an application framework which, according to its website, makes it easy to create stand-alone, production-grade Spring based Applications that you can "just run". Upon the query being run, these expressions are evaluated against a predefined set of variables. UserDetailsServiceImpl This is a very thin extension of org.hibernate.cfg.ImprovedNamingStrategy.The tableName method in that class is passed a source String value but it is unaware if it comes from a @Column.name attribute or if it has spring-boot-dependencies 1.2.5.RELEASE pom import