How to uninstall java mac os

How to uninstall java mac os

The JDK supports both Intel-based (x64) and Apple Silicon (AArch64) Mac computers.

This topic includes the following sections:

System Requirements for Installing the JDK on macOS

JDK Installation Instruction Notation for macOS

JDK installers now support only one version of any Java feature release. You can’t install multiple versions of the same feature release.

For example, you can’t install jdk- 20 and jdk- 20 .0.1 simultaneously. If you attempt to install jdk- 20 .0.1 after jdk- 20 is installed, the installer uninstalls jdk- 20 and installs jdk- 20 .0.1 .

If you install an older version of a JDK when the newer version of the same feature family already exists, an error is displayed, prompting you to uninstall a newer JDK version if an older version has to be installed.

JDK is installed in /Library/Java/JavaVirtualMachines/jdk- .jdk where is the feature release number. For example, JDK 20 .0.1 is installed in /Library/Java/JavaVirtualMachines/jdk- 20 .jdk .

macOS aarch64 (64-bit ARM) systems:

jdk-20_macos-aarch64_bin.dmg

jdk-20_macos-aarch64_bin.tar.gz

Determining the Default JDK Version on macOS

When starting a Java application through the command line, the system uses the default JDK.

You can determine which version of the JDK is the default by entering java -version in a Terminal window. If the installed version is 20 Interim 0, Update 0, and Patch 0, then you see a string that includes the text 20 . For example:

$ java -version java version "20" Java(TM) SE Runtime Environment (build 20) Java HotSpot(TM) 64-Bit Server VM (build 23.2-b04, mixed mode)

To run a different version of Java, either specify the full path, or use the java_home tool. For example:

$ /usr/libexec/java_home -v 20 —exec javac -version

Installing the JDK on macOS

• macOS x64 systems: jdk- _macos-x64_bin.dmg OR jdk- _macos-x64_bin.tar.gz
• macOS aarch64 (64-bit ARM) systems: jdk- _macos-aarch64_bin.dmg OR jdk- _macos-aarch64_bin.tar.gz

Click Accept License Agreement .

A window appears that displays the message: Installer is trying to install new software. Enter your password to allow this.

After the software is installed, you can delete the .dmg or .tar.gz file if you want to save disk space.

Uninstalling the JDK on macOS

Do not attempt to uninstall Java by removing the Java tools from /usr/bin . This directory is part of the system software and any changes will be reset by Apple the next time that you perform an update of the OS.

1. Go to /Library/Java/JavaVirtualMachines .
2. Remove the directory whose name matches the following format by executing the rm command as a root user or by using the sudo tool:

/Library/Java/JavaVirtualMachines/jdk- 20 . interim.update.patch .jdk For example, to uninstall 20 Interim 0 Update 0 Patch 0: $ rm -rf jdk- 20 .jdk

Installation FAQ for macOS

This topic provides answers for the following frequently asked questions about installing JDK on macOS computers.

1. How do I find out which version of Java is the system default?

When you run a Java application from the command line, it uses the default JDK. If you do not develop Java applications, then you do not need to worry about this. See Determining the Default JDK Version on macOS.

2. How do I uninstall Java?

3. After installing Java for macOS 2012-006, can I continue to use Apple’s Java 6 alongside the macOS JDK for Java 20 ?

If you want to continue to develop with Java 6 using command-line, then you can modify the startup script for your favorite command environment. For bash, use this:

$ export JAVA_HOME=`/usr/libexec/java_home -v 20 `

Some applications use /usr/bin/java to call Java. After installing Java for macOS 2012-006, /usr/bin/java will find the newest JDK installed, and will use that for all of the Java-related command-line tools in /usr/bin . You may need to modify those applications to find Java 6, or contact the developer for a newer version of the application.

4. What happened to the Java Preferences app in Application Utilities?

The Java Preferences app was part of the Apple Java installation and is not used by Oracle Java. Therefore, macOS releases from Apple that do not include Apple Java will not include Java Preferences.

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Uninstall Java on mac os with commands [Fixed]

A quick guide to uninstall java 11 or other java versions from Mac OS with commands.

1. Overview

The second option will work for any java version of mac. It can be either java 7, 8, 10, 11, 1, 13, 0r 14.

2. How to remove all java versions from mac os

sudo rm -rf /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin sudo rm -rf /Library/PreferencePanes/JavaControlPanel.prefPane sudo rm -rf /Library/Application\ Support/Oracle/Java/ sudo rm -rf /Library/Java/JavaVirtualMachines

After a successful execution above commands, then run the below command which should not show any java version. That means we are all set now.

3. How to uninstall Java 11 or any version from mac

First, check the list of available java versions from the terminal using any one of the below commands.

MacBook-Pro-2:CoreJava$ /usr/libexec/java_home -V Matching Java Virtual Machines (7): 14.0.1 (x86_64) "AdoptOpenJDK" - "AdoptOpenJDK 14" /Library/Java/JavaVirtualMachines/adoptopenjdk-14.jdk/Contents/Home 12.0.1 (x86_64) "Oracle Corporation" - "Java SE 12.0.1" /Library/Java/JavaVirtualMachines/jdk-12.0.1.jdk/Contents/Home 11.0.7 (x86_64) "Oracle Corporation" - "Java SE 11.0.7" /Library/Java/JavaVirtualMachines/jdk-11.0.7.jdk/Contents/Home 1.8.251.08 (x86_64) "Oracle Corporation" - "Java" /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home 1.8.0_252 (x86_64) "AdoptOpenJDK" - "AdoptOpenJDK 8" /Library/Java/JavaVirtualMachines/adoptopenjdk-8.jdk/Contents/Home 1.8.0_251 (x86_64) "Oracle Corporation" - "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_251.jdk/Contents/Home 1.8.0_161 (x86_64) "Oracle Corporation" - "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_161.jdk/Contents/Home /Library/Java/JavaVirtualMachines/adoptopenjdk-14.jdk/Contents/Home

$ ls -l /Library/Java/JavaVirtualMachines/ total 0 drwxr-xr-x 3 root wheel 96 Jul 5 2020 adoptopenjdk-14.jdk drwxr-xr-x 3 root wheel 96 Apr 25 2020 adoptopenjdk-8.jdk drwxr-xr-x 3 root wheel 96 May 17 2020 jdk-11.0.7.jdk drwxr-xr-x 3 root wheel 96 Jun 23 2019 jdk-12.0.1.jdk drwxr-xr-x 3 root wheel 96 Apr 17 2018 jdk1.8.0_161.jdk drwxr-xr-x 3 root wheel 96 Apr 27 2020 jdk1.8.0_251.jdk

sudo rm -fr /Library/Java/JavaVirtualMachines/jdk1.8.0_161.jdk sudo rm -fr /Library/Java/JavaVirtualMachines/jdk-11.0.7.jdk

$ brew cask uninstall java $ brew cask uninstall caskroom/versions/adoptopenjdk8 $ brew cask uninstall adoptopenjdk8

5. Conclusion

In this article, we’ve seen how to uninstall java from mac os using commands and home brew. The commands shown will work for any java version. Even for future releases also.

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