Install Jstack On Ubuntu Jun 2026
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for i in 1..5; do jstack -l 12345 > thread_dump_$(date +%H%M%S).txt sleep 5 done
jstack <executable> <core_file>
If this returns a version number (e.g., javac 17.0.x ), jstack should already be available in your path. Try running jstack -help . If you see "command not found," proceed to the next step. 2. Update your package list Ensure your local package index is up to date: sudo apt update Use code with caution. Copied to clipboard 3. Install the JDK install jstack on ubuntu
For applications consuming excessive CPU:
For more details on managing Java versions, you can refer to guides on DigitalOcean Ubuntu Tutorials Do you need help finding the Process ID (PID) of your running Java application to use with jstack? How to get a jstack in Windows and Linux - Customer
After the installation completes, verify the JDK is correctly installed: This public link is valid for 7 days
Ubuntu provides OpenJDK through its official repositories. You should match the JDK version with the version of the Java application you are troubleshooting. perifery.atlassian.net For the latest default version: sudo apt update sudo apt install default-jdk Use code with caution. Copied to clipboard For a specific version (e.g., JDK 17 or 21): # Install JDK 17 sudo apt install openjdk- # Install JDK 21 sudo apt install openjdk- Use code with caution. Copied to clipboard For headless environments (Servers):
Typical output: /usr/bin/jstack
To print the current thread stack traces directly to your terminal window, use: jstack 28491 Use code with caution. 3. Save the Thread Dump to a File Can’t copy the link right now
(Note: On some OpenJDK versions, jstack -version will print the standard product version or a help menu). To confirm the exact path where jstack is installed, run: which jstack Use code with caution.
sudo jstack -F <pid>
: Installs a specific version, such as openjdk-17-jdk or openjdk-11-jdk .
Refresh your terminal configuration to apply the changes immediately: source ~/.bashrc Use code with caution. How to Use jstack : A Quick Primer
JStack comes bundled with the JDK, so you need to have JDK installed on your Ubuntu system. If you haven't installed JDK yet, follow these steps:
