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0 pointsvips7L5y ago0 comments

How can't a CF be cancelled?

Since JDK8: https://docs.oracle.com/javase/8/docs/api/java/util/concurre...

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> > A CF can't decide to sleep for a while, nor can it be cancelled.

> How can't a CF be cancelled?

So glad you brought up the docs. CF implements cancel(boolean mayInterruptIfRunning)... which does nothing ;)

More precisely, it will not cancel a running CF. If the CF hasn't started yet, by all means cancel it. But if it's running, that cancel method does nothing.

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mrkeen5y ago

> > A CF can't decide to sleep for a while, nor can it be cancelled.

> How can't a CF be cancelled?

So glad you brought up the docs. CF implements cancel(boolean mayInterruptIfRunning)... which does nothing ;)

More precisely, it will not cancel a running CF. If the CF hasn't started yet, by all means cancel it. But if it's running, that cancel method does nothing.

j / k navigate · click thread line to collapse