vertx / io.vertx.reactivex.core / Future / tryFail

# tryFail

`open fun tryFail(cause: Throwable): Boolean`

Try to set the failure. When it happens, any handler will be called, if there is one, and the future will be marked as completed.

### Parameters

`cause` - the failure cause

Return
false when the future is already completed

`open fun tryFail(failureMessage: String): Boolean`

Try to set the failure. When it happens, any handler will be called, if there is one, and the future will be marked as completed.

### Parameters

`failureMessage` - the failure message

Return
false when the future is already completed