Install OpenJDK 8 (JAVA) in Ubuntu Systems via PPA Repository. How to install OpenJDK 8 in Ubuntu 14.10, Ubuntu 14.04 and Ubuntu 12.04 Systems. OpenJDK 8 is also available in Ubuntu Software Center for Ubuntu 14.10 and Ubuntu 15.04.
Help -> Install New Software
Choose "Helios - http://download.eclipse.org/releases/helios" site
Expand "Web, XML, and Java EE Development"
Check JST Server Adapters (version 3.2.2)