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Asked: 2024-09-24T14:19:25+05:30 In:

I am experiencing difficulties while trying to install OpenJDK 11 JRE headless on Ubuntu 18.04. Can anyone provide guidance or solutions for resolving this issue?

I’ve been having a really frustrating time trying to get OpenJDK 11 JRE headless installed on my Ubuntu 18.04 machine, and it feels like I’ve tried everything! I’m not a complete novice with Linux, but I wouldn’t say I’m a pro either, so I’m kinda stuck in this awkward middle ground. Here’s the situation: I need OpenJDK to run a few Java applications, but for some reason, the installation just keeps failing.

I started by trying the basic command in the terminal: `sudo apt-get install openjdk-11-jre-headless`. Easy, right? But then I started getting all these error messages. At first, it was about missing dependencies, which I looked up and tried to install manually, but then it turned into more of a complicated mess involving broken packages. I thought Ubuntu was supposed to handle packages pretty well — what gives?

I also took a stab at updating my package lists using `sudo apt-get update`, hoping it would clear things up, but no luck there either. Occasionally, I get a vague error that says something about “unable to locate package,” but I’m pretty sure it exists! I even checked the official repositories and it’s listed there.

I’ve tried cleaning up the apt cache with `sudo apt-get clean` and `sudo apt-get autoclean`, hoping that might help resolve any conflicts. But every time I think I’m getting closer, I run into another wall. I’ve tried looking solutions up on forums and some of them sound promising, but I’m not quite ready to start messing around with PPAs or downloading tarballs from random sites.

So here I am, feeling a bit defeated. Has anyone else faced this issue when trying to install OpenJDK 11 JRE headless on Ubuntu 18.04? I’d really appreciate any guidance, tips, or tricks that could help me out! If you’ve got a working solution or a different approach that might work, please share it. I just want to get this thing up and running without too much hassle! Thanks in advance!

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    2 Answers

    1. It sounds like you’ve encountered a common issue with package management on Ubuntu. When you receive errors about missing dependencies, it often helps to run sudo apt-get install -f, which attempts to fix broken dependencies automatically. Additionally, if you’re seeing “unable to locate package” errors, it might indicate that the repository where the OpenJDK package resides isn’t enabled. Ensure that your /etc/apt/sources.list contains the universe repository by checking for a line similar to deb http://archive.ubuntu.com/ubuntu/ bionic universe. If it’s not there, you can add it, followed by updating the package list again with sudo apt-get update.

      Another option is to check for held packages that might be preventing new installations. You can do this by running dpkg --get-selections | grep hold to see if any packages are held up. If you find any, you can use sudo apt-mark unhold to release them. Lastly, if all else fails, consider using a different package manager, like snap, which provides a more isolated environment. You can install OpenJDK from snap using sudo snap install openjdk, which may help bypass the dependency issues you’re facing with apt.






    2. Help with OpenJDK 11 Installation on Ubuntu 18.04


      Struggling with OpenJDK 11 JRE Headless Installation?

      It sounds like you’re hitting some roadblocks with your OpenJDK 11 installation on Ubuntu 18.04, and that can be super frustrating! Here are a few things you could try that might help you break through that wall:

      1. Check Your Repos

      First off, make sure you have the universe repository enabled. OpenJDK is usually in there. You can check it by running:

      sudo add-apt-repository universe

      Then update your package lists again:

      sudo apt-get update

      2. Fix Broken Packages

      If you’re getting broken packages, it might help to fix them up. You can use:

      sudo apt-get install -f

      This command will try to correct your dependencies. After that, try to install OpenJDK again.

      3. Manual Installation with Snap

      If you want to avoid dependency issues altogether, you might want to try installing OpenJDK using snap. Just run this command:

      sudo snap install openjdk11-jre

      This way, all the dependencies are managed for you, and it might save you some headaches!

      4. Use Aptitude (if Installed)

      If you have aptitude installed, it can sometimes deal with dependencies better than apt. It can be installed using:

      sudo apt-get install aptitude

      After installing, try:

      sudo aptitude install openjdk-11-jre-headless

      It might give you some more options for resolving package issues.

      5. Logs and Error Messages

      If you keep running into errors, check the logs. Run:

      cat /var/log/apt/term.log

      or

      cat /var/log/dpkg.log

      This might give you more context about what’s failing.

      6. Last Resort: Purge and Reinstall

      If things are really messy, sometimes it’s worth it to purge everything related to Java and start fresh:

      sudo apt-get purge openjdk-*

      Then try a clean install again:

      sudo apt-get install openjdk-11-jre-headless

      Keep in mind, though, before making sweeping changes, ensure you’ve got backups of any critical projects, just in case.

      Good luck! You’ve got this! If anything works or if you run into more issues, let the community know!


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