Method join

src/Deferred.java:1018–1020

Synchronously waits until this Deferred is called back. This helps do synchronous operations using an asynchronous API. If this Deferred already completed, this method returns (or throws) immediately. Otherwise, the current thread will be blocked and will wait until the Deferred is cal

()

   * will be thrown.
   */
  public T join() throws InterruptedException, Exception {
    return doJoin(true, 0);
  }

  /**
   * Synchronously waits until this Deferred is called back or a timeout occurs.