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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
kata hint != kata suggestion
just tried creating a new solution and it works fo me on CW at the moment, once it breaks because they update the library I'll replace it by
import org.springframework.boot.web.server.LocalServerPortIf you are experiencing this problem of missing import at codewars please contact support.