JTS specifies the implementation of a Transaction Manager that supports the Java Transaction API (JTA) specification at a high level and implements the Java mapping of the OMG OTS specification at ...

Introduced as a part of Java EE 5, the Java Persistence API is a much awaited mechanism for persisting Java objects in the relational database by mapping Java objects to relational database tables.

Java EE's Servlet and JSP API provide a fine foundation for handling a web-based request-response cycle. Adding UI frameworks like JSR-371 to the spec only causes problems.

Nor can it execute complex transactions usually carried out through the Java Transaction API (application programming interface).