title: Understand a complex code base using a sequence diagram
body: <p>I am  working on a big project with a complex codebase written in java. I want to understand a particular piece of code and i thought getting a sequence diagram of the entry point method would give me a good idea. I use intelliJ and i looked for a plugin which could do this and i found 'SequencePlugin' but unfortunately it is not working in intelliJ 8.1.4. Can i achieve what i am trying to in any other way? Is there a standard approach to follow when trying to understand a complex codebase other than by debugging?</p>