Where is JAVA_HOME on macOS Mojave (10.14) to Lion

Question

Java is an optional package on the latest versions of macOS.

Yet once installed it appears like the JAVA_HOME environment variable is not set properly.

Answer 1

I Had to explicitly set it to the exact path on my Macbook air .

Steps followed:

1. try to echo $JAVA_HOME (if it's set it'll show the path), if not, try to search for it using sudo find /usr/ -name *jdk
2. Edit the Bash p with - sudo nano ~/.bash_profile
3. Add the exact path to JAVA Home (with the path from step 2 above) export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home
4. Save and exit
5. Check JAVA_Home using - echo $JAVA_HOME

I am running MACOS MOJAVE - 10.14.2 (18C54) on a Macbook Air with JAVA 8

Answer 2

Anyone using AUSKEY from the Australian Tax Office (ATO) should uninstall AUSKEY. This sorted out my JAVA_HOME issues.

It is also no longer required for MAC users. Yah!

Answer 3

For Mac Yosemite,

JDK 1.7.0_xx is using

$ ls -ltar /usr/bin/java
/System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java

JAVA_HOME

/Library/Java/JavaVirtualMachines/jdk1.7.0_xx.jdk/Contents/Home

Answer 4

Got the same issue after I upgrade my Mac OS and following worked for me:

1. cmd>vi ~/.bash_profile

2. Add/update the line for JAVA_HOME: export JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk1.7.0_15.jdk/Contents/Home"

3. cmd>source ~/.bash_profile or open a new terminal

I think the jdk version might differ, so just use the version which you have under /Library/Java/JavaVirtualMachines/

Answer 5

For me, Mountain Lion 10.8.2, the solution most voted does not work. I installed jdk 1.7 via Oracle and maven from homebrew.

My solution is from the hadoop-env.sh file of hadoop which I installed from homebrew, too. I add the below sentence in ~/.bash_profile, and it works.

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

This solution also works for OS X Yosemite with Java 1.8 installed from Oracle.

Answer 6

The following worked for me. I'm using ZSH on OSX Yosemite with Java 8 installed.

The following command /usr/libexec/java_home emits the path to JDK home:

/Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home

In your ~/.zshrc,

export JAVA_HOME = "/Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home"