Method cancelled

Bolts/src/bolts/Task.java:186–190

Creates a cancelled task with the given error.

()

   * Creates a cancelled task with the given error.
   */
  public static <TResult> Task<TResult> cancelled() {
    Task<TResult>.TaskCompletionSource tcs = Task.<TResult> create();
    tcs.setCancelled();
    return tcs.getTask();
  }

  /**
   * Makes a fluent cast of a Task's result possible, avoiding an extra continuation just to cast