HTTP Client sometimes gets java.io.IOException -> Invalid chunk header byte 32

A DESCRIPTION OF THE PROBLEM :
Loading some urls that return chunked content result in java.io.IOException -> Invalid chunk header byte 32.
Here are some examples:
http://fetimani.com/feed
http://www.flashpoints.net/?feed=rss2
http://ajwrc.org/jp/modules/bulletin3/index.php?page=rss
http://tousatsuerodouga.net/?feed=rss2&p=1918


FREQUENCY : always