This is a sample .bashrc_profile file, to be used in any Mac OSX (or Linux, changing its paths) with bash shell. It allows you to run multiple JVMs with different versions at the same time. I have recopiled it from several Internet resources, and tailored it to my own needs.

#export JAVA_6_HOME=$(/Library/Java/JavaVirtualMachines/1.6.0_65-b14-462.jdk/Contents/Home)
export JAVA_6_HOME=/Library/Java/JavaVirtualMachines/1.6.0_65-b14-462.jdk/Contents/Home
#export JAVA_7_HOME=$(/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/)
export JAVA_7_HOME=/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/

alias java6='export JAVA_HOME=$JAVA_6_HOME'
alias java7='export JAVA_HOME=$JAVA_7_HOME'

#default java7
export JAVA_HOME=$JAVA_7_HOME

Of course, Java 8 could be added too. I hope you find it useful.