code: @Nullable
    public static String getPathFromClass (@Nullable final Class <?> aClass)
    {
      return aClass == null ? null : getPathFromClass (aClass.getName ());
    }
docs: Get the path representation of the passed class. The path representation is
  achieved by replacing all dots (.) with forward slashes (/) in the class
  name.
  
  @param aClass
  The class of which the path is to be retrieved. May be
  <code>null</code>.
  @return The path representation. Never <code>null</code>.