The focus of Java EE 7 is on the cloud, and specifically it aims to bring Platform-as-a-Service providers and application developers together so that portable applications can be deployed on any cloud infrastructure and reap all its benefits in terms of scalability, elasticity, multitenancy, etc. The existing specifications in the platform such as JPA, Servlets, EJB, and others will be updated to meet these requirements.
Java EE 7 continues the ease of development push that characterized prior releases by bringing further simplification to enterprise development. It also adds new, important APIs such as the REST client API in JAX-RS 2.0 and the long awaited Concurrency Utilities for Java EE API. Expression Language 3.0 and Java Message Service 2.0 will undergo an extreme makeover to align with the improvements in the Java language. There are plenty of improvements to several other components. Newer web standards like HTML 5 and Web Sockets will be embraced to build modern web applications.

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