package org.opendaylight.mdsal.binding.javav2.spec.runtime;
import com.google.common.annotations.Beta;
-import com.google.common.base.Optional;
import java.io.InputStream;
+import java.util.Optional;
import java.util.Set;
import org.opendaylight.yangtools.concepts.SemVer;
import org.opendaylight.yangtools.yang.model.repo.api.SchemaSourceRepresentation;