Developing J2EE applications - IntelliJ IDEA in Action - page 402

Figure 11.15 Graphic editor for J2EE module properties. If any settings are wrong, you're warned in
the Warnings field.
From the J2EE project tab, you can edit the J2EE application module. Press F4 or
Ctrl+Enter, or right-click the module and select Edit from the context menu.
The J2EE Application Module editor shown in figure 11.15 will open. This inter-
face lets you edit the most common options of a J2EE application module deploy-
ment descriptor.
You can also alter the module properties in text form by directly editing the
corresponding deployment descriptor.
11.3 Understanding application server integration
Running, testing, and debugging an enterprise application is a more complex
process than doing the same thing to a standard Java application, because of
the need for an application server. Servlets, EJB s, and similar technologies run
in the context of a container , an environment that application servers provide.