RFR: 8216407: java.util.UUID.fromString accepts input that does not match expected format
Alan.Bateman at oracle.com
Sun Mar 8 13:53:31 UTC 2020
On 06/03/2020 18:15, Roger Riggs wrote:
> Hi Chihiro, et.al.,
> Thanks for taking a look at this issue, however...
> There has been a long history of concerns about breaking existing
> that depend on the loose parsing of UUIDs. Throwing an exception
> where it did not
> previously is an incompatible change.
> The crucial concern about performance parsing conforming strings has
> been addressed by:
> 8196334 Optimize UUID#fromString
> I propose to close these as WILL-NOT-FIX: and hope that the next
> several times it gets reported
> they will be closed as duplicates.
> 8216407 <https://bugs.openjdk.java.net/browse/JDK-8216407>
> java.util.UUID.fromString accepts input that does not match expected
> accepts wrong placements of the dashes
As you say, any tightening up of the validation after 15+ years will
create a potential compatibility issue and might not be worth it. Maybe
we could re-purpose JDK-8216407 to clarifying the javadoc instead? That
would at least help with these bug reports when people are surprise that
fromString doesn't fail.
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