code: public boolean getExecuteChildren(Page page) {
          ContentEntityObject entityObject = getContentEntityManager().getById(page.getId());
          String value = getContentPropertyManager().getStringProperty(entityObject, EXECUTE_CHILDREN);
          return value == null ? false : Boolean.valueOf(value);
      }
docs: Retrieves from the page propeties the Execute childs boolean.
  If none registered false is returned.
  
  @param page a {@link com.atlassian.confluence.pages.Page} object.
  @return the Execute childs boolean.