CS5ServiceManager Java error shows up at startup of Mac
Here's another way, if you don't mind getting your feet wet in the Terminal:

launchctl remove com.adobe.CS5ServiceManager
sudo rm -f /Library/LaunchAgents/com.adobe.CS5ServiceManager.plist


What this does is:

Removes the launchctl profile that starts CS5Manager at startup;
Deletes the plist file that re-creates that launchctl profile.

The second step is necessary or it will keep coming back.

Be careful when using sudo and rm, you don't want to remove anything important - just this plist file.

Credit: https://forums.adobe.com/thread/1618590