In what situations is the use of the Nothing object in the code assumed?

In Android (and Kotlin), the Nothing object is used to denote functions or expressions that never return a value, meaning they do not complete normally. This can be:

• A function that always throws an exception.
• A function that calls exitProcess or an infinite loop.

The Nothing type serves as an indicator to the compiler that after calling such a function, the execution of the code will not continue. For example:

fun fail(message: String): Nothing {
    throw IllegalStateException(message)
}

Using Nothing helps improve type safety and flow control in the code.