Conferences are generally where major announcements and new techniques are showcased by both vendors and experts in the field. Such is the case for Devoxx or what was formerly the JavaPolis conference.
These series of post by Panos Konstantinidis takes you through four days of event. Ranging from topics like JPA and test driven development, to more recent Java headlines like project Jigsaw and JavaFX covered at the event.
Read Panos's four posts from Devoxx 2008: