How to set JAVA_HOME environment variable on macOS?
Solution 1
in .bash_profile:
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.xx/Contents/Home
Solution 2
Adding the below answer to help those who are looking for step by step instructions on how to setup Java_Home on a Mac.
Determine whether Java is installed by using the command below:
which java
You will something like this - /usr/bin/java
Next Step will be to determine the version of Java Installed by using the command below:
java -version
You will see something like java version "1.8.0_131"
Next step will be to get the location where the Java is installed:
cd /Library/Java
Under the Java folder, select the folder with the version that was displayed earlier:
/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home
Next check if Java_Home is setup to the correct location:
echo $JAVA_HOME
It will result in blank output if it is not already setup. If it returns the location, check if it points to the correct folder.
You can add or update the Java_Home using the below commands:
vi ~/.bash_profile
Navigate to the end of the file by pressing "Shift + g". Now press "i" to get to insert mode. Add the below lines in the bash_profile after replacing the path to the java home directory on your mac
# Setting Java_Home
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home
Save this by pressing Esc followed by ":wq!"
Finally open a new terminal window and test the variable is setup correctly:
echo $JAVA_HOME
It should return the Java_Home path setup
Solution 3
If your default terminal is /bin/zsh (Z Shell) like in my case, then you should set these environment variable in ~/.zshenv file with following contents:
export JAVA_HOME="$(/usr/libexec/java_home)"
Similarly, any other terminal type not mentioned above, you should set environment variable in its respective terminal env file.
After saved the content into env file, restart terminal and call following commands:
echo $JAVA_HOME
It should display the full Java path.
Solution 4
Just a note to say this still works in OpenJDK version 11. As shown in the original question the java_home
utility lives in /usr/libexec
, which might not be on your $PATH
. You can run the command directly in a terminal window, here's sample output too:
$ /usr/libexec/java_home -v 11
/Library/Java/JavaVirtualMachines/jdk-11.0.4.jdk/Contents/Home
And set JAVA_HOME
to that value. Even better, wire your shell script's dot files as suggested in the original question by @user1872384, because that way your environment automatically keeps up with JDK upgrades as you install them.
Comments
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user1872384 almost 2 years
According to this mobilefirst tutorial, it mentioned:
You must have the JAVA_HOME environment variable set to your JDK directory.
For example:
Mac OSX: /Library/Java/JavaVirtualMachines/jdk1.7.0_67.jdk/Contents/Home
I've added this 2 lines in .bash_profile:
export JAVA_HOME=`/usr/libexec/java_home -v 1.8` export PATH=$PATH:$JAVA_HOME/Contents/Commands
Is this correct?
Thanks.
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user1872384 over 8 yearsHey @Peter Salomonsen. I've set it to that directory and installed the CLI program. However when I use the terminal to create a new project with this command: "mfp create helloworld" it still gives me this error : -bash: mfp: command not found. Can you please help?
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200_success over 8 years@user1872384 Then that means that the
mfp
command was not found in the$PATH
. That doesn't necessarily have anything to do with$JAVA_HOME
. -
user1872384 over 8 yearsI see.. Do you have any idea how to fix that?
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user1872384 over 8 yearsGot it just need to logout and login after installation :D
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Deborah almost 5 yearsThank you for this magnificent answer!! This is the one I used.
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Shomu over 4 yearsneed to save .bash_profile source .bash_profile
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Baptista over 3 yearsAfter have tried a lot of solutions, thats the only one that worked here, dont know why.
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Akhil about 2 yearsThis worked for me. Updating .zshenv if you are using zsh as your default terminal