In this chapter, we provided an introduction to Java EE, supplying a list of several technologies and application programming interfaces (APIs) included with Java EE.
We also covered how Java EE is developed both by software vendors and the Java community at large via the Java community process.
Additionally, we explained how there are multiple implementations of the Java EE standard, a fact that avoids vendor lock-in and allow us to easily migrate our Java EE code from one application server to another.
Finally, we cleared up the confusion between Java EE, J2EE, and Spring, explaining how Java EE and Spring applications are frequently referred to as J2EE applications, even though J2EE has been a dead technology for several years.
