To uninstall AdoptOpenJDK installed via Homebrew,
brew uninstall adoptopenjdk8
To uninstall OpenJDK installed via Homebrew,
brew uninstall openjdk8
macos - How to uninstall java from mac completely? JRE and JDK - Stack Overflow
How to uninstall Java
How to uninstall Java from macbook pro M1… - Apple Community
Uninstalling JAVA From MAC
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To uninstall AdoptOpenJDK installed via Homebrew,
brew uninstall adoptopenjdk8
To uninstall OpenJDK installed via Homebrew,
brew uninstall openjdk8
The /usr/bin/java and other related tools are macOS shims that run a specific version of Java, as defined by the JAVA_HOME variable.
This variable is usually set in your ~/.bashrc file:
export JAVA_HOME=$(/usr/libexec/java_home -v1.8)`
You can check the current value:
$ echo $JAVA_HOME
/usr/local/Cellar/openjdk@8/1.8.0-392/libexec/openjdk.jdk/Contents/Home
You may have multiple versions of Java installed, to list them all:
$ /usr/libexec/java_home -V
Matching Java Virtual Machines (3):
21.0.1 (x86_64) "Homebrew" - "OpenJDK 21.0.1" /usr/local/Cellar/openjdk/21.0.1/libexec/openjdk.jdk/Contents/Home
17.0.9 (x86_64) "Homebrew" - "OpenJDK 17.0.9" /usr/local/Cellar/openjdk@17/17.0.9/libexec/openjdk.jdk/Contents/Home
1.8.0_392 (x86_64) "Homebrew" - "OpenJDK 8" /usr/local/Cellar/openjdk@8/1.8.0-392/libexec/openjdk.jdk/Contents/Home
/usr/local/Cellar/openjdk/21.0.1/libexec/openjdk.jdk/Contents/Home
In my case, you can see there are three versions of OpenJDK installed via homebrew. I can look them up in the list of installed packages:
$ brew list | grep -iE 'java|jdk|temurin'
openjdk
openjdk@17
openjdk@8
If I wanted to remove all of them, I could do brew uninstall them one by one, or:
(brew list | grep -iE 'java|jdk|temurin'); do brew uninstall $pkg; done
I installed several versions of the JDK, both official and open source. But I no longer need them. How exactly do you "uninstall" Java on macOS?
The best I can figure is just to go into HD/Library/Java and just delete everything there. Slightly new to macOS so wondering if this is right. The installers themselves don't give any means of uninstalling.
Did you run “sudo uninstall file://” first? The “rm -fr” command is forcing recursive removal of folder items. It will not look in other locations to remove the application or unused dependencies.
Have you considered using a package manager like Homebrew?
There is also an uninstaller project you could try.
We had a MAC computer that we wanted to uninstall JAVA from. We ran the following commands:
sudo rm -fr /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin
sudo rm -fr /Library/PreferencePanes/JavaControlPanel.prefPane
sudo rm -fr ~/Library/Application\ Support/Oracle/Java
and
rm -r ~/“Library/Application Support/Oracle/Java”
The first 3 commands were taken from this article:
(https://www.java.com/en/uninstall/uninstall_instructions.html#macOS)
And the 4th command was taken from this article:
(https://www.java.com/en/download/help/deployment_cache.html)
However, our RMM claims this computer still has JAVA. So, do you think these commands would have indeed uninstalled JAVA? Is our RMM likely incorrect?
Thank you.
I was able to unistall jdk 8 in mavericks successfully doing the following steps:
Run this command to just remove the JDK
sudo rm -rf /Library/Java/JavaVirtualMachines/jdk<version>.jdk
Run these commands if you want to remove plugins
sudo rm -rf /Library/PreferencePanes/JavaControlPanel.prefPane
sudo rm -rf /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin
sudo rm -rf /Library/LaunchAgents/com.oracle.java.Java-Updater.plist
sudo rm -rf /Library/PrivilegedHelperTools/com.oracle.java.JavaUpdateHelper
sudo rm -rf /Library/LaunchDaemons/com.oracle.java.Helper-Tool.plist
sudo rm -rf /Library/Preferences/com.oracle.java.Helper-Tool.plist
You just need to use these commands
sudo rm -rf /Library/Java/*
sudo rm -rf /Library/PreferencePanes/Java*
sudo rm -rf /Library/Internet\ Plug-Ins/Java*