Install Maven on OSX causes Error

If you get error "Exception in thread "main" java.lang.UnsupportedClassVersionError: org/apache/maven/cli/MavenCli : Unsupported major.minor version 51.0" when installing Maven on mac, try the following command (make sure you modify the version of jdk on your computer):

export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_40.jdk/Contents/Home 

Reference: http://stackoverflow.com/questions/29255495/maven-installation-osx-error-unsupported-major-minor-version-51-0