JAVA_HOME on Mac OS X

To check where JAVA_HOME is:

/usr/libexec/java_home

or

/usr/libexec/java_home -v 1.6

To export it as env variable

export JAVA_HOME=$(/usr/libexec/java_home)

or

export JAVA_HOME=$(/usr/libexec/java_home -v 1.6)