On or around 1/30/2013 Apple pushed a update to OSX computers that is causing issues with Java and InSite (See Story). At this time this is the only know fix for this problem.
- Log into the machine as Administrator and open Terminal.
- Enter the following command into terminal:
sudo /usr/libexec/PlistBuddy -c "Delete :JavaWebComponentVersionMinimum" /System/Library/CoreServices/CoreTypes.bundle/Contents/Resources/XProtect.meta.plist
- Hiit return.
- You will be prompted for your password.
- Reboot the machine
After rebooting the computer InSite should again work using Java.