Coldfusion CFHTTP DNS Cache Settings

Just found out after 2 hours of debugging that Coldfusion / Jrun does never refresh its DNS cache. I was trying to aggregate several RSS feeds and one feed, even though i knew it was there, was constantly throwing errors that i could not explain. Obviously that site, which was in the DNS query cache of the JVM, was moved to a new location and Coldfusion still tried to get it from the old IP. After looking around for a bit i found this handy solution to change the CFHTTP cache settings. I set the cache TTL to 6 hours (21600s).