My 2¢:

Something akin to "exception transparency" would be a much more palatable 
solution (to me), otherwise it'll just lead to a proliferation of 
UncheckedX-exception types in general, sort of defeating the entire purpose of 
checked exceptions.

Cheers,
√


Viktor Klang
Software Architect, Java Platform Group
Oracle
________________________________
From: loom-dev <[email protected]> on behalf of Pavel Rappo 
<[email protected]>
Sent: Wednesday, 22 October 2025 11:44
To: Alan Bateman <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: StructuredTaskScope.TimeoutException vs UncheckedTimeoutException

On Wed, Oct 22, 2025 at 7:26 AM Alan Bateman <[email protected]> wrote:
>
>
> If a timeout is configured when opening a new StructuredTaskScope then it 
> applies to the scope. If the timeout expires before the scope is closed then 
> the timeout causes the scope to be cancelled and join to wakeup. Declaring 
> join to throw the checked-TimeoutException would be very annoying when not 
> using a timeout or in the update, when there is other outcome when the 
> timeout expires.

For the record, at no point was I suggesting to use a checked
exception instead. Using a checked exception there unconditionally
would be annoying for sure.

> One of these years, there will be progress on the topic of exception 
> transparency. It's impossible to know how this might look but there is a good 
> chance that it will shine a light on past decisions to introduce UncheckedXXX 
> exceptions. Introducing UncheckedTimeoutException would invite more usages, 
> way beyond the very specific need here.

I thought that more usages might be good. My main concern here is the
possibility of a clash between two like-named exceptions, one of which
is checked and the other one isn't. But I guess you don't see this as
an issue. That's okay; thanks.

-Pavel

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