Before installing, verify if jstack is already available on your system by checking the version: jstack -version Use code with caution.
Run this command to install the default JDK, which includes jstack: sudo apt update && sudo apt install default-jdk -y Use code with caution. Copied to clipboard Step-by-Step Installation : Ensure your package list is current. sudo apt update install jstack on ubuntu
sudo apt install default-jdk
The -headless version includes jstack , jmap , jstat , etc., but not GUI tools. Before installing, verify if jstack is already available