Java Programming Language is #5 on github what is remarkable. Github came relatively late for Java--most of the opensource Java projects were already hosted on apache.org, sourceforge.net, Google Code, java.net, codehaus or kenai.com...
NEW workshop: Building HTML 5 Applications With Angular 2
Full week in December 2016: from Java EE 7 Bootstrap, Effective, Architectures over Testing to Microservices
On demand workshops: Java EE 7: Bootstrap, Effective, Testing and Microservices available for streaming.