Uninstall Java (manually)

Remove OpenJDK 19.0.2 (manually installed)

1. Check the location

/usr/libexec/java_home -V

Example:

/Users/zhamri/Library/Java/JavaVirtualMachines/openjdk-19.0.2

2. Delete JDK

rm -rf /Users/zhamri/Library/Java/JavaVirtualMachines/openjdk-19.0.2

If permission is denied, use sudo:

sudo rm -rf /Users/zhamri/Library/Java/JavaVirtualMachines/openjdk-19.0.2

If JAVA_HOME still points to Java 19

Edit your ~/.zshrc

vim ~/.zshrc

Remove this line if present:

export JAVA_HOME="/Users/zhamri/Library/Java/JavaVirtualMachines/openjdk-19.0.2/Contents/Home"

Add this (for Java 21):

export JAVA_HOME="$(/usr/libexec/java_home -v 21)"

Reload:

source ~/.zshrc