HTTPCLIENT-1425: Fixed socket closed exception thrown by caching HttpClient when the origin server sends a long chunked response
Contributed by James Leigh <james at 3roundstones dot com>

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@1534585 13f79535-47bb-0310-9956-ffa450edef68