Use multiple JDK at the same time in OS X (Switch JAVA_HOME)

Sometime you need to switch between jdk versions according to projects requirements. It is hard to change JAVA_HOME each time for a specific project, so instead of setting up JAVA_HOME per project we can write a bash script to switch between versions.

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

this is the normal JAVA_HOME export which is default set up preferred by mac OSX .

/usr/libexec/java_home -V

above command lists installed java versions which are also seen via Java Preferences menu inside the System properties of Mac.