macbook 12.3.1 Monterey (M1) 上的 java_home 问题

Question

java_home 未设置，无法在 Mac M1 (12.3.1 - Monterey) 上找到 Java 运行时

openjdk 已安装：

java --version
openjdk 11.0.15 2022-04-19
OpenJDK Runtime Environment Homebrew (build 11.0.15+0)
OpenJDK 64-Bit Server VM Homebrew (build 11.0.15+0, mixed mode)

/usr/libexec/java_home
The operation couldn’t be completed. Unable to locate a Java Runtime.
Please visit http://www.java.com for information on installing Java.

我已经在配置文件中设置了JAVA_HOME ：

export JAVA_HOME=/opt/homebrew/Cellar/openjdk@11/11.0.15/libexec/openjdk.j/Contents/Home

Answer 1

不幸的是， java_home仅在 2 个位置查找运行时：

• $HOME/Library/Java/JavaVirtualMachines
• /Library/Java/JavaVirtualMachines

符号链接有效，但需要在自制升级时保持最新：

$ ln -sf /opt/homebrew/Cellar/openjdk@11/11.0.15/libexec/openjdk.jdk ~/Library/Java/JavaVirtualMachines/openjdk11

然后它会出现在列表中的原始位置：

$ /usr/libexec/java_home -V
Matching Java Virtual Machines (3):
    18.0.1.1 (arm64) "Homebrew" - "OpenJDK 18.0.1.1" /opt/homebrew/Cellar/openjdk/18.0.1.1/libexec/openjdk.jdk/Contents/Home
    11.0.15 (arm64) "Homebrew" - "OpenJDK 11.0.15" /opt/homebrew/Cellar/openjdk@11/11.0.15/libexec/openjdk.jdk/Contents/Home
    1.8.0_332 (arm64) "Azul Systems, Inc." - "Zulu 8.62.0.19" /Library/Java/JavaVirtualMachines/zulu-8.jdk/Contents/Home
/opt/homebrew/Cellar/openjdk/18.0.1.1/libexec/openjdk.jdk/Contents/Home