JAVA_HOME to .profile

sudo gedit /home/byorn/.profile

export JAVA_HOME="/home/byorn/Programs/jdk1.8.0_31"
export PATH="$JAVA_HOME/bin:$PATH"

Top Java Sites To Follow

http://javarevisited.blogspot.com/2015/01/top-5-blogs-java-ee-developers-should-follow.html

http://blog.arungupta.me/

      http://www.adam-bien.com/roller/abien/

      http://antoniogoncalves.org/

      https://pragmaticintegrator.wordpress.com/

      https://blogs.oracle.com/reza/

http://www.theserverside.com/

http://stackoverflow.com/

http://www.oracle.com/technetwork/java/index.html

JAVA EE 7 Glassfish 4.1 Examples

https://java.net/downloads/glassfish-samples/