Create a Sleep class/object/decorator

[fabriciofx]

Let's create a Sleep object, because it's util in a lot of situations and we already use private void sleep() in some places in Cactoos code.

[victornoel]

@fabriciofx do you mean something like Thread.sleep? Can you point to the place where we use this private void sleep() you are referring to?

[fabriciofx]

@victornoel it's used in Retry, ThreadsTest, TimedTest, AsyncTest, RetryTest and TimedFuncTest.

[victornoel]

@fabriciofx let's create a new Scalar decorator named Delayed that would take a delay as a Duration and a wrapped Scalar, and would wait the delay before delegating to the wrapped object.

Then let's add a todo to do the same for the other cactoos interfaces + replace usage of Thread.sleep where it makes sense.

[victornoel]

@0crat in

[victornoel]

@0crat status

[0crat]

@0crat status (here)

@victornoel This is what I know about this job in C63314D6Z, as in §32:

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