@ConsumerType @FunctionalInterface public interface Failure
This is a functional interface and can be used as the assignment target for a lambda expression or method reference.
void fail(Promise<?> resolved) throws java.lang.Exception
This method is called if the Promise with which it is registered resolves with a failure.
In the remainder of this description we will refer to the Promise
Promise.then(Success, Failure) when this Failure
callback was registered as the chained Promise.
If this methods completes normally, the chained Promise must be failed with the same exception which failed the resolved Promise. If this method throws an exception, the chained Promise must be failed with the thrown exception.
resolved- The failed resolved
java.lang.Exception- The chained Promise must be failed with the thrown exception.
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