code: public static DefaultListOperation<TaskInfo> list(LinkInfo<TaskInfo> link) {
          return new DefaultListOperation<TaskInfo>(link.getHref(),
                  new GenericType<ListResult<TaskInfo>>() {
                  });
      }
docs: Create an operation that will list the tasks pointed to by the given
  link.
  
  @param link
  link to tasks
  @return the list operation.