JPA implementations comparison: Hibernate, Toplink Essentials, Openjpa, EclipselinkSummary This article is a response to the lack of information on the net about the performance differences among the 4 most well known Java Persistence API (JPA) implementations: Toplink Essentials, EclipseLink, Hibernate and OpenJPA. Besides results and conclusions, the full test code is also available in case you want to repeat the test yourself. I wrote a relatively simple program which execute
