Good Reference Sources for Migration of Commons HttpClient 3.x to HttpComponents HttpClient 4.x

Hi,

I had a task for replacing our Commons HttpClient 3.x dependency to HttpComponents HttpClient 4.x
As the latter one contains many changes over predecessor library, there are many things to be corrected at client side.
So, I used the sources below to accomplish my task, they were very useful, I recommend you to look at these if you have a task like mine :)

http://debuguide.blogspot.in/2013/01/quick-guide-for-migration-of-commons.html

http://www.codingpedia.org/ama/how-to-use-the-new-apache-http-client-to-make-a-head-request/

http://stackoverflow.com/questions/6024376/apache-httpcomponents-httpclient-timeout


Have a good day!