title: Enterprise Service Bus and BPM
body: <p>I am a Java professional. I have a requirement to implement Enterprise Service Bus(ESB). There are quite a few ESB providers are available in the market.I am confusing a bit among those.
  Please suggest which one is the best to implement ESB and BPM. I am expecting to have an open source solution with rich documentation and easy to understand with number of examples and scenarios so that we can start from scratch and implement it without any hassle.</p>