Go Tutorials - Let's get our hands really dirty by writing a lot of Golang code
Java 8 Guides and Tutorials - A lot of awesome examples using Java 8 features like Stream, Lambda, Functional Interface, Date and Time API and much more
CDI Guide And Tutorials - Many examples of how to use CDI and CDI 2.0 like Qualifiers, Interceptors, Decorators, Lazy Initialization an much more!