Hi Peter,

Strange indeed. It did not fail for me in 5.0 with the standard STON version, but it does fail in 4.0 with the latest STON. Asking the bogus dictionary to #rehash seems to fix the problem. I will investigate and turn you example into a unit test.

Sven

> On 05 Apr 2016, at 11:14, Peter Uhn��k <i.uhnak@gmail.com> wrote:
>
> Hi,
>
> I ran into a problem with STON that seems to corrupt on materialization.
>
> Consider the following script:
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> c := OrderedCollection with: UUID new.
> d := Dictionary with: c first -> nil.
> o := { c . d }.
>
> s := STON toStringPretty: o.
>
> o2 := STON reader
>�� �� �� ��allowComplexMapKeys: true;
>�� �� �� ��on: s readStream;
>�� �� �� ��next.
>
> o2 second keys. "an Array(an UUID('571bbfb7-78b9-430c-9aad-3e0088a25f4c'))"
> o2 second printString. "KeyNotFound: key an UUID(''571bbfb7-78b9-430c-9aad-3e0088a25f4c'') not found in Dictionary"
> o2 second at: o2 second keys first. "the same error"
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> So even though it contains the key it fails to access it.
>
> Interestingly enough if I serialize and materialize the "broken" dictionary again it suddenly works again.
>
> Thanks,
> Peter
>
>
>