code: public AbstractPage getImplementedPage(Page page) throws GreenPepperServerException {
          Integer version = getImplementedVersion(page);
          if (version == null)
              throw new GreenPepperServerException(NEVER_IMPLEMENTED, "Never Implemented");
  
          return getPageManager().getPageByVersion(page, version);
      }
docs: Retrieves the content of the specification at the implemented version.
  
  @param page a {@link com.atlassian.confluence.pages.Page} object.
  @return the content of the specification at the implemented version.
  @throws com.greenpepper.server.GreenPepperServerException if any.