I noticed that when my applications start up which use the Quartz job scheduling api, Quartz was pinging www.terracotta.org to see if there were any updates available. The check was also throwing an error:
Quartz version update check failed: java.io.IOException: Server returned HTTP response code: 503 for URL: http://www.terracotta.org/kit/reflector?kitID=quartz&pageID=update.properties&id=-1062731163&os-name=Mac+OS+X&jvm-name=Java+HotSpot%28TM%29+Client+VM&jvm-version=1.5.0_24&platform=i386&tc-version=1.8.3&tc-product=Quartz&source=Quartz&uptime-secs=1&patch=UNKNOWN
The following code snippet shows how to prevent Quartz from doing an update check on startup. This works for sure with Quartz version 1.8.3.
In quartz.properties, add the following line:
org.quartz.scheduler.skipUpdateCheck = true
Piece of Cake!!!