To build one needs:

• JDK(http://www.oracle.com/technetwork/java/javase/downloads/index.html) and
• maven(https://maven.apache.org/download.cgi)

Use the command:

mvn package

OR

• An IDE bundled with both maven and a JDK such as Netbeans, IntelliJ, or Eclipse.
  • Netbeans will open a maven project with File -> Open Project just like Netbeans generated Ant projects.
  • IntelliJ and Eclipse both have options to import maven projects.