Hunt for libraries

Today my morning started with a hunt for java libraries, just for fun, I was looking for some new cool libraries, and then I ended up looking into details of persistence, without even realizing I ended up where I was not supposed to be, I promised myself yesterday that I will not waste my time doing meaningless research (although I was doing it for several 3 years with no output), and hell I am doing it again, this post is a reminder of my failed attempt , hope I will be more focused later