Enterprise Systems


Java is a computing programming language used by many systems including Homer and Parnassus. New versions of Java are regularly released making it difficult to keep the systems and documentation up to date. To find out what version of Java is installed, open a browser and go to www.javatester.org. This page will tell you what version of Java is running on the computer.

Currently, Homer and Parnassus require different versions of Java. If you use both of these administrative systems, make sure you use the older version for Homer; don’t install the newer version. Because it is so confusing, administrative system users are encouraged not to update Java without checking with your departmental technical lead.

If you are having problems with java, uninstall the application from the Control Panel and login to the appropriate application. The application will download Java if it is not installed on the computer. Users should not need to find the correct version of Java on the web.

HomerAdmin currently requires Java 6. Parnassus can use version 6 or 7. If you are a HomerAdmin user, do not upgrade Java. If you use both HomerAdmin and Parnassus, you will need to use the older version of Java. If you are only a Parnassus user and the Java client is not installed on the computer, the application will download version 6 and you will be prompted to update after the install. If you only use Parnassus, you can install the update.

Mac users may not be able to use the version of Java required for HomerAdmin since Apple blocks older versions. If that is the case, users may need to find a Windows computer to work from.

Technology Renewal

Java is installed on the computer but settings are associated with each user who logs into the computer.  Settings are the prompts users receive to accept security risks and certificates. If a computer is a shared device, each user may need to make these changes the first time he/she logs in.

When first logging into an administrative system after getting a new computer as part of the Technology Renewal program, you may be prompted to accept security certificates (yes), prompted to upgrade (probably no) and prompted to accept Java risk (yes).

HomerAdmin – Using an Older Version of Java

HomerAdmin requires an older version of Java. If you run into problems with using HomerAdmin, uninstall the newest version of Java and install the older version.

  1. Click on the Start icon
  2. Click on Control Panel
  3. Open Programs and Features window
  4. Find and uninstall any versions of Java  that may be installed
  5. Once you have successfully uninstalled all versions of Java, navigate to ACE and open HomerAdmin
  6. Depending on browser, you may be prompted with Show all content. Click to show all content
  7. When prompted to install the Java plug in, click install
  8. Click Yes to install Java Update 25
  9. Click Install
  10. Click close once the install is complete
  11. If successful, the HomerAdmin login page will load

If you are prompted to install Java even though Java is already installed on the computer, uninstall all versions and start again.

Macintosh and Parnassus

Safari shows Java "Inactive Plug-in" when accessing Parnassus. By clicking "Inactive Plug-in" it will prompt to "allow," and "accept risk." Then Parnassus loads. Firefox prompts about java 6_39 but then allows you to "continue with newer version", which then allows Parnassus to load.