Here is an excerpt from a link I will post below:
Sun Java Update Checker task. If JUSCHED below is running, and the time has come in its schedule for the PC to check for updates to the Java Runtime, then JUSCHED starts JUCHECK. In turn JUCHECK checks the Sun website for updates to the Java Runtime. If there are updates available, an icon appears in the System Tray to let you know. Double-clicking on the icon enables you to download the updates, or cancel the reminder, or set the reminder to remind you again at a later date.
This is a Java process.
http://searchtasks.answersthatwork.com/tasklist.php?File=JUCheck