jstack -version
jstack is usually a symlink to the actual binary in the JDK's bin/ directory. install jstack on ubuntu
After installation, you may need to add the JDK's bin directory to your system's PATH so you can run jstack from any directory. jstack -version jstack is usually a symlink to
# Install matching JDK version sudo apt install openjdk-11-jdk # Match your Java runtime version install jstack on ubuntu
You must run jstack with the same user privileges as the running Java process.