First run /usr/libexec/java_home -V which will output something like the following:
Matching Java Virtual Machines (3):
1.8.0_05, x86_64: "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home
1.6.0_65-b14-462, x86_64: "Java SE 6" /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
1.6.0_65-b14-462, i386: "Java SE 6" /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
/Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home
Pick the version you want to be the default (1.6.0_65-b14-462 for arguments sake) then:
export JAVA_HOME=`/usr/libexec/java_home -v 1.6.0_65-b14-462`
or you can specify just the major version, like:
export JAVA_HOME=`/usr/libexec/java_home -v 1.8`
Now when you run java -version you will see:
java version "1.6.0_65"
Java(TM) SE Runtime Environment (build 1.6.0_65-b14-462-11M4609)
Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-462, mixed mode)
Add the export JAVA_HOME… line to your shell’s init file.
For Bash (as stated by antonyh):
export JAVA_HOME=$(/usr/libexec/java_home -v 1.8)
For Fish (as stated by ormurin)
set -x JAVA_HOME (/usr/libexec/java_home -d64 -v1.8)
Updating the .zshrc file should work:
nano ~/.zshrc
export JAVA_HOME=$(/usr/libexec/java_home -v 1.8.0)
Press CTRL+X to exit the editor Press Y to save your changes
source ~/.zshrc
echo $JAVA_HOME
java -version
Top answer 1 of 16
2562
First run /usr/libexec/java_home -V which will output something like the following:
Matching Java Virtual Machines (3):
1.8.0_05, x86_64: "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home
1.6.0_65-b14-462, x86_64: "Java SE 6" /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
1.6.0_65-b14-462, i386: "Java SE 6" /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home
/Library/Java/JavaVirtualMachines/jdk1.8.0_05.jdk/Contents/Home
Pick the version you want to be the default (1.6.0_65-b14-462 for arguments sake) then:
export JAVA_HOME=`/usr/libexec/java_home -v 1.6.0_65-b14-462`
or you can specify just the major version, like:
export JAVA_HOME=`/usr/libexec/java_home -v 1.8`
Now when you run java -version you will see:
java version "1.6.0_65"
Java(TM) SE Runtime Environment (build 1.6.0_65-b14-462-11M4609)
Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-462, mixed mode)
Add the export JAVA_HOME… line to your shell’s init file.
For Bash (as stated by antonyh):
export JAVA_HOME=$(/usr/libexec/java_home -v 1.8)
For Fish (as stated by ormurin)
set -x JAVA_HOME (/usr/libexec/java_home -d64 -v1.8)
Updating the .zshrc file should work:
nano ~/.zshrc
export JAVA_HOME=$(/usr/libexec/java_home -v 1.8.0)
Press CTRL+X to exit the editor Press Y to save your changes
source ~/.zshrc
echo $JAVA_HOME
java -version
2 of 16
608
This answer is an attempt to address: how to control java version system-wide (not just in currently running shell) when several versions of JDK are installed for development purposes on macOS El Capitan or newer (Sierra, High Sierra, Mojave). As far as I can tell, none of the current answers do that (*).
As a developer, I use several JDKs, and I want to switch from one to the other easily. Usually I have the latest stable one for general use, and others for tests. But I don't want the system (e.g. when I start my IDE) to use the latest "early access" version I have for now. I want to control system's default, and that should be latest stable.
The following approach works with Java 7 to 12 at least (early access at the time of this writing), with Oracle JDK or OpenJDK (including builds by AdoptOpenJDK produced after mid-October 2018).
Solution without 3rd party tools:
- leave all JDKs at their default location, under
/Library/Java/JavaVirtualMachines. The system will pick the highest version by default. - To exclude a JDK from being picked by default, rename its
Contents/Info.plisttoInfo.plist.disabled. That JDK can still be used when$JAVA_HOMEpoints to it, or explicitly referenced in a script or configuration. It will simply be ignored by system'sjavacommand.
System launcher will use the JDK with highest version among those that have an Info.plist file.
When working in a shell with alternate JDK, pick your method among existing answers (jenv, or custom aliases/scripts around /usr/libexec/java_home, etc).
Details of investigation in this gist.
(*) Current answers are either obsolete (no longer valid for macOS El Capitan or Sierra), or only address a single JDK, or do not address the system-wide aspect. Many explain how to change $JAVA_HOME, but this only affects the current shell and what is launched from there. It won't affect an application started from OS launcher (unless you change the right file and logout/login, which is tedious). Same for jenv, it's cool and all, but as far as I can tell it merely changes environment variables, so it has the same limitation.
Reddit
reddit.com › r/javahelp › switching versions of java on mac osx
r/javahelp on Reddit: Switching versions of Java on Mac OSX
January 7, 2023 -
Hello!
I'm currently using Java 8 on my Mac and i'm finally getting around to the latest Java. I just installed JDK 19, and i'm wondering how i'm suppose to switch to the new jdk on my machine.
One doc says I can run this command: /usr/libexec/java_home -v 19 --exec javac -version
But my output just shows:
javac 1.8.0_291
Is there a standard way of switching java versions on Mac?
Top answer 1 of 5
8
Not standard, but easier, try using sdkman.
2 of 5
5
The easiest way on any unix system is to use sdkman ( https://sdkman.io ). Install sdkman: curl -s "https://get.sdkman.io" | bash Install Java 19: sdk install java 19.0.1-open (this installs Oracle's OpenJDK build) If it asks you if you want to use it as the default just answer yes. If you prefer to use an sdk from a different vendor sdk list java will give you tons of options of vendors and versions. To switch java versions just do sdk use java where version is the identifier you used to install it. There is more extensive usage documentation available here: https://sdkman.io/usage
Switching versions of Java on Mac OSX
Not standard, but easier, try using sdkman. More on reddit.com
10
1
January 7, 2023Java for UniFI Controller
Windows or Linux system for the controller? More on reddit.com
10
4
July 12, 2019Setting JAVA_HOME path
It means that you have not configured the JAVA_HOME environment variable. Using a virtual terminal application, type in: update-alternatives --config java, which will give you the location of JDK listed under Path column. Depending on the installed version of JDK, it will be something like: /usr/lib/jvm/java-14-openjdk-amd64/bin/java If you have installed multiple versions of JDK, all of them will be listed here 2. Using text editor such as nano and terminal emulator, type in: nano /etc/profile.d/jdk_home.sh This will create and open for editing a new script file named jdk_home.sh under the location /etc/profile.d, where you need to type in: export JAVA_HOME= where JDK-Location should not include the /bin/java directories. For example: EXPORT JAVA_HOME=”/usr/lib/jvm/java-14-openjdk-amd64” This will set your environment variable JAVA_HOME The steps above are if you have installed JDK using apt package manager tool, you also have the option of using SDKMAN which will configure all environment variables for you automatically. More on reddit.com
12
1
February 27, 2020How to change java versions for different versions without deleting and installing.
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October 1, 2023Videos
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How to set JAVA_HOME on Mac | Setting up $JAVA_HOME on macOS - YouTube
How to Switch Java Versions on macOS
DEV Community
dev.to › rithvik78 › change-the-default-java-version-on-macos-3jee
Change the default Java Version on macOS - DEV Community
February 19, 2022 - Here, We are trying to change the version to Java SE 8 First run /usr/libexec/java_home -V which... Tagged with macos, java, jdk, javase8.
Medium
medium.com › @manvendrapsingh › installing-many-jdk-versions-on-macos-dfc177bc8c2b
Installing & switching between multiple JDK on macOS | by Manvendra P Singh | Medium
February 20, 2023 - But, if you want many different versions of java on your Mac, you can install each of them as per the steps above & switch between them as per the steps below · JAVA_HOME is the environment variable that directs java programs to pick the Java location. So to switch between various java versions we need to change the JAVA_HOME value to different locations
Medium
medium.com › @haroldfinch01 › step-by-step-guide-installing-and-switching-java-versions-on-mac-osx-f3896b9872f4
Step-by-Step Guide: Installing and Switching Java Versions on Mac OSX | by Harold Finch | Medium
May 21, 2024 - Step-by-Step Guide: Installing and Switching Java Versions on Mac OSX To install Java on macOS and allow for easy switching between different versions, you can use a version manager like jenv. Here's …
W3Docs
w3docs.com › java
How to set or change the default Java (JDK) version on macOS? | W3Docs
To set the default Java (JDK) version on macOS, you can use the /usr/libexec/java_home command line tool to locate the installation path, then configure your shell to use it permanently.
Medium
medium.com › @devkosal › switching-java-jdk-versions-on-macos-80bc868e686a
Switching Java (JDK) Versions on MacOS | by Dev Sharma | Medium
January 10, 2025 - 5. (Optional) To make this the default JDK version, input one of the following in Terminal: # if running zsh which is what recent macs use, open this file open ~/.zshrc# if have an older mac which doesn't use zsh, open this file open ~/.bash_profile · Then, add your Terminal input from step 3 to the end of this file: # SWITCH TO JAVA VERSION 8 export JAVA_HOME=`/usr/libexec/java_home -v 1.8`
JetBrains
intellij-support.jetbrains.com › hc › en-us › community › posts › 14515375889170-How-to-Switch-Java-Versions-on-MacOS
How to Switch Java Versions on MacOS – IDEs Support (IntelliJ Platform) | JetBrains
October 18, 2023 - I've already tried accessing these contents here: https://www.ninniku.tw/java-version-shuffle-how-to-switch-java-versions-on-macos-with-ease/#:~:text=Open Terminal on your Mac.&text=This will open the nano,file in your home directory.&text=Replace the path with the,version you want to use.
DevQA
devqa.io › switch-between-different-java-versions-mac
How to Switch Between Different Java Versions on Mac
July 4, 2023 - That’s it! You have successfully switched between different versions of Java using jenv. You can set a different version as the default or configure Java version per directory using jenv local command.
Oracle
java.com › en › download › help › mac_java_update.html
How do I Update Java for my Mac?
If you choose Skip This Version but later decide to check for an update, you can launch the Java Control Panel by clicking the Java icon in System Preferences. Go to the Update tab to initiate an update check.
JavaForge
javaforge.com › home › how to change java version mac
How to change Java version Mac
March 28, 2024 - To make Java version changes persistent across restarts, you’ll need to modify the `.zshrc` file in your home directory: 1. Editing `.zshrc`: Open Terminal and use a text editor like nano or vim to access or create the `.zshrc` file: ... 2. Set `JAVA_HOME` in `.zshrc`: Add the export command for `JAVA_HOME` with the desired Java version’s path:
Ninniku IT Hub
ninniku.tw › 首頁 › apple › java version shuffle: how to switch java versions on macos with ease
Java Version Shuffle: How to Switch Java Versions on MacOS with Ease - Ninniku IT Hub
December 14, 2023 - On macOS, you can switch the default Java version by using the java_home command.
Tata Neu
tataneu.com › home › consumer electronics › how to switch java versions on mac: a complete faq guide
How to Switch Java Versions on Mac: A Complete FAQ Guide
April 30, 2025 - Remember, efficient management of your java environment mac makes switching between projects smooth and hassle-free. The easiest way to change default java mac is to set the $JAVA_HOME variable.
Snyk
snyk.io › blog › installing-and-managing-java-on-macos
Installing and managing Java on macOS | Snyk
October 12, 2023 - Running sdk use instructs SDKMAN! ... or employ a versatile tool like SDKMAN!. To set or change the Java path, edit the environment variable, JAVA_HOME....
Maarten on IT
maarten.mulders.it › 2017 › 02 › quickly-switch-java-versions-on-macos
Quickly switch Java versions on macOS - Maarten Mulders
February 7, 2017 - alias j9="export JAVA_HOME=`/usr/libexec/java_home -v 9`; java -version" alias j8="export JAVA_HOME=`/usr/libexec/java_home -v 1.8`; java -version" alias j7="export JAVA_HOME=`/usr/libexec/java_home -v 1.7`; java -version"
Delft Stack
delftstack.com › home › howto › java › change java version mac
How to Change Java Version in MacOS | Delft Stack
February 2, 2024 - When installing the JDK package on our mac, we have to specify its path as an environment variable to access the Java tool anywhere in the local system. This environment variable is where we tell the version of Java to be used as default. In the following steps, we will change the value of ...
Azul
support.azul.com › hc › en-us › articles › 17535521715476-Setting-the-default-Java-version-on-macOS
Setting the default Java version on macOS - Azul Systems
July 19, 2023 - While the JRE or JDK is not part anymore of macOS itself like it was in the past and stopped with Java 6, interfaces, commands and standards to make it simple to use are still integrated by default and continued to be maintained. The following Zulu documentation page explains how to select the default Java version ...
Kodejava
kodejava.org › how-do-i-set-the-default-java-jdk-version-on-mac-os-x
How do I set the default Java (JDK) version on Mac OS X? - Learn Java by Examples
To make this change permanent you need to set it in your shell init file. For example if you are using bash then you can set the command in the .bash_profile. Add the following lines at the end of the file. # Setting default JDK to version 1.8. export JAVA_HOME=`/usr/libexec/java_home -v 1.8`
Medium
medium.com › reachnow-tech › change-default-java-version-on-mac-a7f01647f126
Change default Java version on Mac | by Lothar Schulz | reachnow-tech | Medium
September 6, 2019 - How to change default java version on Mac from Java version 11.0.2 to Java version 1.8 to enable a service transition.
Codemia
codemia.io › knowledge-hub › path › how_to_set_or_change_the_default_java_jdk_version_on_macos
How to set or change the default Java (JDK) version on ...
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