Generally if you are not sure where your JAVA_HOME is the first thing you would do is type in the following command
echo $JAVA_HOME
But more times than usual if you have not intentionally set this variable in your MAC you would see an empty response. So now how would you proceed to find the real JAVA_HOME. Some times a quick solution is looking in /System/Library/Frameworks/JavaVM.framework/Versions. Still there can be a lot of Java HOME's in there (like what happened to me).
So now how do we look for the JAVA_HOME or to which folder do we point to.
1. First run
java -version
2. Now you can straight away point to the HOME folder according to the version if there is a folder with the particular version. But the problem is sometimes there is no such folder.
3. Now issue the following commands to find the actual folder.
Now run the java_home command in the same Commands folder.
The java_home command usually returns the value for $JAVA_HOME
https://developer.apple.com/legacy/library/documentation/Darwin/Reference/ManPages/man1/java_home.1.html
so now this :/Library/Java/JavaVirtualMachines/jdk1.8.0_91.jdk/Contents/Home should be your JAVA_HOME
add the following lines to your .bash_profile
vi ~/.bash_profile
#add the following line
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_91.jdk/Contents/Home
#save the file and now issue the following command
source ~/.bash_profile
Now when you print $JAVA_HOME you should see that its correctly set
