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Go to the Java website, choose the 64-bit JRE (Java Runtime Engine). Download the .tar.gz file and upload the file to the serveradmin home folder. For older versions of Java go to the Java Archives site.

Use the account that will be launching the Java process. In this example it will be serveradmin,

su - serveradmin # If you are not already serveradmin
cd ~
wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie"

The steps for JRE and JDK are both the same. Here is an example of a JRE setup,

su - serveradmin # If you are not already serveradmin
cd ~ # Switch to the serveradmin home directory
tar -xvpf jre-7u7-linux-x64.tar.gz

The result will be an uncompressed jre directory using the same name as the package. In this example the folder name would be, jre-7u7-linux-x64.

If you plan to use multiple versions of Java, we recommend keeping the folder name with the version number information and using symbolic links. If you are only using one version of Java, then simply rename the folder.

For the server example, we will rename the folder,

mv jre-7u7-linux-x64 java

You may be interested in how to Zero Footprint Java on Windows.


  1. Need to add instructions for checking that the Java process runs in server mode and why.

  2. Roderick or someone, can we figure out how to do performance analysis on java web app to validate 32-bit vs 64-bit performance.