Under the hood
Useful1 Signal2
Shutdown kills one class of tasks first and callers can limit what else gets torn down.
What's wrong with this entry?
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What
Shutdown now kills one class of running tasks before the main cleanup loop, and callers can pass a predicate to limit which tasks the loop tears down. Which tasks the first pass targets is not identifiable from the bundle.
Evidence
shouldStop
Strings lifted out of the shipped bundle, so the claim above can be checked against them.