One of the most important skills you should have as a Jakarta EE developer is knowing how to work with the most widely used Jakarta EE application servers on the market.

As we have stated in preceding chapters, the standards involved in the Jakarta EE ecosystem allow you to reuse most of the knowledge you already have, no matter which server you are using.

However, when we are talking about deployment and some administration tasks, things could be different (and usually are). The differences are not in the way they work, but in the way they are done.

This chapter covers the following recipes:

• Understanding Apache TomEE
• Eclipse GlassFish
• Red Hat WildFly