Apache HttpClient

Although the java.net package provides basic functionality for accessing resources via HTTP, it doesn't provide the
full flexibility or functionality needed by many applications. The Jakarta Commons HttpClient component seeks to fill
this void by providing an efficient, up-to-date, and feature-rich package implementing the client side of the most
recent HTTP standards and recommendations

Feature List

http://hc.apache.org/httpclient-3.x/features.html