Two simple commands to resolve problems with Maven installed via Homebrew

UpdateEnvironmentPlist.sh

defaults write ~/.MacOSX/environment.plist M2_HOME `brew --prefix maven`/libexec
defaults write ~/.MacOSX/environment.plist M2 `brew --prefix maven`/libexec/bin

Thank you, This was the only solution that worked.

Thanks, this really saved me. I also did

export M2=brew --prefix maven/libexec/bin
export M2_HOME=brew --prefix maven/libexec

so that I could use maven in my open shell.

Thanks so much!

Thank you! I've been at this for too long. This fixed it

Thanks for your tips. @sanderson-sfdc

...and if like me you got
Exception in thread "main" java.lang.UnsupportedClassVersionError: org/apache/maven/cli/MavenCli : Unsupported major.minor version 51.0

Then you need to set JAVA_HOME (check you are using the correct JDK version in the command):
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_60.jdk/Contents/Home

Thanks! This just solved my problem!

I just downloaded maven zip file and extracted to my local folder in mac.
maven commands are not recognized in mac