There are also the following software installed on:
The _$JAVAHOME environment variable is set to /opt/jdk8,
and the $PATH is updated to support the _$JAVAHOME/bin commands.
I've also installed Maven 3.2.5, which is downloaded directly from the www.us.apache.org mirror.
The _$M2HOME environment variable is set to /opt/maven,
and the $PATH is updated to support the _$M2HOME/bin commands.