This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
eclipse will ask you for "application directory" by showing this text:"/your_server_root/appservers/jboss"
just delete that text and browse for the jboss directory that you have in your system for example: