Summary

In this chapter, we provided an introduction to Jakarta EE, outlining a list of several technologies and APIs included with Jakarta EE:

• We covered how Jakarta EE is openly developed both by software vendors and the Java community at large via the Eclipse Software Foundation
• We explained how there are multiple implementations of Jakarta EE, a fact that avoids vendor lock-in and allows us to easily migrate our Jakarta EE applications from one implementation to another
• We cleared up the confusion between Jakarta EE, Java EE, J2EE, and Spring, explaining how Jakarta EE and Spring applications are frequently referred to as J2EE applications, even though J2EE has been obsolete for several years

Now that we’ve had a general overview of Jakarta EE, we are ready to start learning how to use Jakarta EE to develop our applications.