Nuxeo Platform is a Java based solution. Developing Nuxeo Platform requires JDK 8 installed on your computer. You can download the latest JDK 8 version from Oracle, or choose your preferred way to download a JDK.
Once installed, verify the Java compiler version in terminal. The result should be in Java 8:
$ javac -version javac 1.8.0_131
You need to install Maven, a project management tool.
brew install maven