The third edition of David Heffelfinger's Java EE book has been recently released. This updated edition is covering the latest version of the Java EE Platform, i.e. Java EE 7.
The book gives a wide introduction on the Java EE Platform and its major APIs in their latest version: JPA 2.1, EJB 3.2, JSF 2.2, CDI 1.1, JMS 2.0, JAX-RS 2.0, Beans Validation 1.1, JAX-WS 2.2, etc.
The book also cover 2 of the APIs introduced in Java EE 7 : the WebSocket API and JSON-P.
So if you are new to Java EE 7 or if you have been stuck on an older version the platform, reading this book will give you a good technical overview of Java EE 7, its main APIs and they works. It will give a solid overall understanding of Java EE 7 to rapidly start. You will then be able to deep more easily in the Platform and its APIs.
NB : The book samples are using GlassFish 4 but most of the content of the book is also applicable to any other Java EE 7 application server... that's the beauty of the Java EE!