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## org.apache.http.concurrent
Interface FutureCallback<T>

Type Parameters:
  `T` - the future result type returned by this callback.

    public interface FutureCallback<T>

A callback interface that gets invoked upon completion of a `Future`.

Since:
  4.2

Method Summary
`void` | `cancelled()`
`void` | `completed(T result)`
`void` | `failed(Exception ex)`

Method Detail

### completed

    void completed(T result)

### failed

    void failed(Exception ex)

### cancelled

    void cancelled()

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