Questione giuridica chiave
Whether the federal nullity complaint against the cantonal decision on testament opening jurisdiction was admissible
Decisione estratta
The complaint was inadmissible because the jurisdiction ruling had to be challenged immediately and was no longer open to review together with the later merits decision.
Motivazione estratta
A self-standing cantonal decision on jurisdiction in a non-appealable civil matter is a final cantonal decision for purposes of Art. 68 OG. If not appealed immediately, it becomes closed to later attack with the substantive decision.