# Package io.vertx.ext.sync

- Interface Summary
  Interface | Description
  --- | ---
  HandlerReceiverAdaptor<T> | Represents an object that is both a handler of a particular event and also a receiver of that event.
  Receiver<T> | Represents a synchronous receiver of events.
  SuspendableRunnable |

- Class Summary
  Class | Description
  --- | ---
  Sync | This class contains various static methods to allowing events and asynchronous results to be accessed in a synchronous way.
  SyncVerticle | A `Verticle` which runs its `start` and `stop` methods using fibers.

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