Installing Java 7 Snapshot on Ubuntu

On my Ubuntu I’m facing this JVM Bug which suddenly freezes the keyboard of IDEA. Now I’m trying Anils suggestion. Therefore I need to install a Java 7 snapshot:

  1. download self-extracting binary file of java 7 snapshot
  2. run chmod +x jdk-7-ea-bin-b48-linux-i586-19_feb_2009.bin to make it executable
  3. run ./jdk-7-ea-bin-b48-linux-i586-19_feb_2009.bin to extract the archive
  4. run sudo mv ./jdk1.7.0 /usr/lib/jvm to move it to the other JVMs
  5. run update-alternatives --config java to check how many JVMs you already installed
  6. run sudo update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk1.7.0/jre/bin/java 3
    I got 2 installations, so I need to specify a 3
  7. run sudo update-alternatives --config java to chance your java version.
  8. run java -version to validate everything is fine

To tell IDEA 8.1 to run with Java 7 you need to add -Didea.no.jdk.check=true in idea.vmoptions.

Keep your fingers crossed for me that this will fix that problem;)

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16 Responses to Installing Java 7 Snapshot on Ubuntu

  1. Adam Reece says:

    Thanks, these instructions came in handy.

    I wanted JRE 1.7 on my portable Ubuntu as it has some good performance improvements. Useful for Minecraft 🙂

  2. Keegan Owsley says:

    When I do this and try to run minecraft, it errors with “Exception in thread “Minecraft main thread” java.lang.UnsatisfiedLinkError: /home/keegan/.minecraft/bin/natives/liblwjgl.so: libjawt.so: cannot open shared object file: No such file or directory”

    but libjawt.so is in the jdk1.7/lib/i386 folder. Anyone know of any way to get java to recognize it?

  3. Keegan Owsley says:

    Well, I got around it by adding this to my launcher:

    LD_LIBRARY_PATH=/usr/lib/jvm/jdk1.7/lib/i386

  4. Nick DeCarlo says:

    Thanks for the tip Keegan!

  5. Nitesh says:

    thanx for the post.. really helped me a lot..
    keep up the good work
    Nitesh Chauhan.

  6. Free Minecraft…

    I’m very happy you wrote all that info. It’s indeed a valuable piece of blog you got there….

  7. Danmar says:

    Thank you very much, this works exactly the same for JDK 6 self-extract installation.

  8. The people with jibjawt.so errors, there is a much simpler way to fix it. Go to lwjgl.org and download the latest version. Replace all the files in /.minecraft/bin, including the natives folder with the files included in there. That is a complete fix, and updating lwjgl has performance improvements of its own. 😀

  9. Joe says:

    Broken link so cant install. This is so stupid. Why do people expect me to use lunix if i cant even get sun java without doing all this command line stuff? none of the tuturials work

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