Slightly deceiving error message on Collectors.toMap

Peter Levart peter.levart at gmail.com
Thu Apr 17 16:04:34 UTC 2014


On 04/17/2014 05:53 PM, Michael Nascimento wrote:
> On Thu, Apr 17, 2014 at 12:50 PM, Peter Levart <peter.levart at gmail.com> wrote:
>> That's confusing too. It's not a problem with duplicate values but with
>> duplicate keys. Maybe:
>>
>> Duplicate key, mapped to value %s
>>
>> Regards, Peter
> Actually it's mapped to two values, so printing one won't help much to
> find the root cause :-S

But the two values are the same (if the key->value mapper function *is* 
a function), aren't they?

Regards, Peter

>
> I'm about to have lunch and then I'll file this bug, we can discuss a
> better message there.
>
> Regards,
> Michael



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