Fazer o download e instalar o SDK do Java 8
http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
Após fazer o downlaod instalar
Fazer o download e instalar o Maven
https://maven.apache.org/install.html
https://www.jetbrains.com/idea/download/
https://www.eclipse.org/downloads/
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_121.jdk/Contents/Home
export PATH=/opt/apache-maven-3.5.3/bin:$PATH