Setup JAVA_HOME on Apple Mac

Download the latest java from Oracle https://www.oracle.com/java/technologies/downloads/#jdk19-mac

1. Open terminal and check the java version

java --version
java 19 2022-09-20
Java(TM) SE Runtime Environment (build 19+36-2238)
Java HotSpot(TM) 64-Bit Server VM (build 19+36-2238, mixed mode, sharing)

2. Check if JAVA_HOME is set echo $JAVA_HOME

3. If it returned empty then on the home / check for the file ~/.zshenv by hitting ls -al

4. If the file already exist open it if not found create using touch ~/.zshenv

5. Open the file using open ~/.zshenv

6. on the terminal hit /usr/libexec/java_home

7. It’ll return the Java installation path as /Library/Java/JavaVirtualMachines/jdk-19.jdk/Contents/Home

8. Copy and past in the file .zshenv as export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk-19.jdk/Contents/Home

9. Save Cmd+S and close the file

10. Make sure the file saved by hitting cat ~/.zshenv to see what’s in the file

11. Close the terminal and reopen

12. Hit echo $JAVA_HOME it should return the java path