J2EE modules can be migrated from the J2EE 1.2 specification
level to J2EE 1.4. This section describes the artifacts migrated for
J2EE projects from J2EE 1.2 to J2EE 1.4 specification level by the
J2EE upgrade wizard.
Web projects (Servlet level 2.2 to Servlet level 2.4)
Artifacts of a web deployment descriptor are migrated by
the J2EE Migration wizard when a J2EE 1.2 web project is migrated
to the J2EE 1.4 specification level.