【教程】macOS完全卸载Java开发环境

✨适用情况

下载Oracle官方的 dmg 后双击 pkg文件形式安装的Java环境
Homebrew 或者 MacPorts 安装

如果通过 Homebrew 或者 MacPorts 安装，也请按照如下方法卸载。

✨Standard Edition Installation Guide

Java Platform, Standard Edition Installation Guide 中对卸载都有详细说明

JDK JRE分别都说明了卸载方式

卸载Java环境时要同时卸载JDK与JRE

官方文档中特别强调

Note:
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.

各版本 Standard Edition Installation Guide 如下

✨卸载演示

Java8

根据上述提供的官方文档卸载Java8

Java8

首先卸载JDK

查看当前JDK环境

cd /Library/Java/JavaVirtualMachines
ls

当前的JDK环境为 jdk1.8.0_281.jdk

sudo rm -rf /Library/Java/JavaVirtualMachines/jdk1.8.0_281.jdk

然后卸载JRE

To uninstall the JRE, you must have Administrator privileges and execute the remove commands either as root or by using the sudo(8) tool.

sudo rm -rf /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin
sudo rm -rf /Library/PreferencePanes/JavaControlPanel.prefpane

与卸载前的设置界面对比可以注意到Java控制面板已经消失了。

Java17

根据上述提供的官方文档卸载Java17

Java17
- https://docs.oracle.com/en/java/javase/17/install/installation-jdk-macos.html#GUID-F9183C70-2E96-40F4-9104-F3814A5A331F

To uninstall the JDK on macOS:

You must have Administrator privileges.

Note:

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.

Go to /Library/Java/JavaVirtualMachines.

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-17.interim.update.patch.jdk

For example, to uninstall 17 Interim 0 Update 0 Patch 0:

$ rm -rf jdk-17.jdk