Java Version

Java is a software platform used across a wide range of computing environments. Currently, OIT suggests the latest update of Java 7, which is compatible with most services provided by Notre Dame. If you are running a different version of Java, some services may not work properly. You can find instructions below to determine which version of Java is on your system, and how to switch to a compatible version of Java if necessary.

Some services on campus do not work with the newest version of Java, and require an older version of Java to run properly. If you use one of the services listed below, you will need to install Java 6 on your system.

No matter which version of Java you choose, you may still have security vulnerabilities if you do not keep Java up to date. Be sure to check for updates regularly by either turning on Java auto-updates or manually checking for updates for your version.

If you do not view webpages or run applications that require Java, you may want to disable it or uninstall it all together. Java has had several vulnerability issues over the past year, and in an attempt to prevent their users from being affected by these Apple has disabled Java in all browsers in OS X operating systems. You can find additional information concerning these Java exploits on the Information Security Advisories page.

Note: If you are running a 64 bit Windows operating system and use both a 64 bit and a 32 bit browser, you will need to have both the 64 and 32 bit versions of Java installed on your system.

What services require Java 6?

Currently a number of services provided by Notre Dame do not work well with Java 7. If you run any of the following services, you will want to install Java 6 to ensure full compatibility:

  • Bosscars
  • Open Fox Messenger

How to check what version of Java is on your computer:


  • Click Start
  • Click Control Panel
  • Make sure that you are in Icon View

    Control Panel

  • Click Java


  • Click About


  • Your current version of Java will be displayed. For most of the services listed above, you should be running Java 6 Update 45

    Java Version



  • Click the Spotlight icon in the upper right side of your screen


  • Search for Terminal
  • Click on the Terminal Icon

    Spotlight Search

  • Type java -version


  • Tap return on your keyboard. Your Java version should read as "1.6.0_45"

    Java Version


If you are not using Java 6 and need to use the services listed above, you will need to uninstall your current version of Java:


  • Click Start
  • Click Control Panel
  • Make sure you are in Icon View


  • Click Programs and Features
  • Click Java so that it is highlighted

    Java Uninstall

  • Click Uninstall

    Click Uninstall

  • Follow the instructions to uninstall Java from your machine



Follow the insructions for uninstalling Java 7 and restoring Java 6 on Java's web page:


Installing the latest version of Java 6:

You can find the latest version of Java 6 and installation instructions here: