code: public MethodDoc[] build(boolean sort) {
          buildImplementedMethodList(sort);
          return methlist.toArray(new MethodDoc[methlist.size()]);
      }
docs: Return the array of interface methods which the method passed in the
  constructor is implementing. The search/build order is as follows:
  <pre>
  1. Search in all the immediate interfaces which this method's class is
  implementing. Do it recursively for the superinterfaces as well.
  2. Traverse all the superclasses and search recursively in the
  interfaces which those superclasses implement.
  </pre>
  
  @return MethodDoc[] Array of implemented methods.