Notes on Java in MacOS

content/docs/devops/macos/homebrew.md

@@ -23,6 +23,8 @@ brew doctor
 brew update
 brew shellenv
 brew cleanup
+brew search xxx
+brew info xxx
 brew install xxx
 brew reinstall xxx
 brew uninstall xxx

content/docs/devops/macos/java.md

@@ -0,0 +1,51 @@
+# Java on MacOS
+
+Install with homebrew:
+
+```sh
+brew search java
+brew info java
+brew install java
+sudo ln -sfn /opt/homebrew/opt/openjdk/libexec/openjdk.jdk /Library/Java/JavaVirtualMachines/openjdk.jdk
+```
+
+Check:
+
+```sh
+ls -lsah /Library/Java/JavaVirtualMachines/
+java -version
+/usr/libexec/java_home -V
+```
+
+Setup `JAVA_HOME` in `~/.zshenv`:
+
+```sh
+export JAVA_HOME=$(/usr/libexec/java_home -v"21.0.1")
+```
+
+Refresh shell: `source ~/.zshenv`
+
+Install Maven:
+
+```sh
+brew install maven
+mvn -version
+brew list maven
+```
+
+Settings are in `/opt/homebrew/opt/maven/libexec/conf/settings.xml`.
+
+To upgrade or uninstall:
+
+```sh
+brew upgrade maven
+brew uninstall maven
+```
+
+Install Java 8:
+
+```sh
+brew search openjdk
+brew install openjdk@8
+# Cannot install - it requires x86_64 architecture
+```