Troubleshooting Java Problems
Java is a free add-in used by web browsers to show interactive content. Java is used by several functions within Moodle and by the advanced uploader in Vault. Some verisons of Java are known to cause problems with software used by Pacific University or ot have serious security flaws. Java can be downloaded free from www.Java.com.
If you have a version of Java with a known problem, UIS reccomends that you download and install the latest version.
To upgrade ot the latest version of Java:
Go to Java’s website, http://www.java.com/en/, and click on the “Free Java Download” link. Follow the instructions and prompts to download and install Java 7 Update 11. You can also use this direct link to the installer on Java’s website: http://javadl.sun.com/webapps/download/AutoDL?BundleId=73135
Java 7 requires an Intel-based Mac running Mac OS X 10.7.3 (Lion) or later and administrator privileges for installation.
Go to Java’s website, http://www.java.com/en/, and click on the “Free Java Download” link. Follow the instructions and prompts to download and install Java 7 Update 11. You can also use this direct link to the installer on Java’s website: http://javadl.sun.com/webapps/download/AutoDL?BundleId=73154
It is strongly recommended that Windows users uninstall older versions of Java from their system: http://www.java.com/en/download/uninstall.jsp
Known Incompatible Versions of Java
- Java 7, Update 11: Has a critical security vulnerability that is actively being used my malicious web sites to gain full control of affected computers.
- Java 1.6.0_29 or 1.70: Caused crashes and unexpected logouts when accessing Blackboard. This was the latest verison of Java as of 11/18/2011.
- Java 1.6.0_31 for Mac : Causes crashes and unexpected logouts when accessing Blackboard via older versions of Lockdown Browser (188.8.131.52 and before). This was the latest verison of Java as of 4/9/2012 and is an important update because it closes an actively exploited security hole.
Checking Your Java Version
You can check your Java version using the following methods:
- Windows 7: See https://wiki.csuchico.edu/confluence/display/help/How+to+check+your+Java+Version+in+Windows+7
- Macintosh: See https://wiki.csuchico.edu/confluence/display/help/How+to+Check+Your+Java+Version+(MAC)
You can also click on the Check Browser button on the Blackboard Homepage.
If you have questions about how to check your Java version, please e-mail firstname.lastname@example.org and we will provide assistance.
Mac users of LockDown Browser
- A new version of LockDown Browser for Mac has been released to address the issue. The new release disables Java when LockDown Browser starts, if it determines that your computer has Java 1.6.0_21 installed. We recommend that all Mac users of LockDown Browser download and install the latest version prior to your next assessment. The next time you launch LockDown Browser you will see an update notification. Follow the prompts to download the installer for the update. Be sure to run the installer for the update to complete the install.
You can also manually update LockDown Browser by locating the current LockDown Browser in your Application folder and moving it to your Trash folder. Then download and run the latest installer for LockDown Browser from the following link: http://www.respondus.com/lockdown/information.pl?ID=128233986