Set the language level to 1.7.
Set the language level to 1.7.

ivanursul/strongbox,strongbox/strongbox,AlexOreshkevich/strongbox,strongbox/strongbox,sbespalov/strongbox,sbespalov/strongbox,korest/strongbox,baisjuan/strongbox,strongbox/strongbox,sbespalov/strongbox,nenko-tabakov/strongbox,strongbox/strongbox,sbespalov/strongbox,ivanursul/strongbox