This section contains the detailed tutorial on a wide variety of topic added
in Java EE6.
From the past two years, the focus of sun is on making environment more
easier instead of adding new technologies. In spite of reducing complexity
and making environment more convenient, some of the features are also completely
In Java EE 6 some new features are added like Profiles. Some technologies is
improved by adding annotations instead of XML in most of the
technologies(Servlets 3.0, JPA 2.0). Some features are also removed completely,
for example CMP of EJB because it is not widely used by the software developers.
In Java EE 6, JAX-RPC is substituted by the JAX-WS and EJB
CMP is substituted by JPA with more simplified way.