import org.eclipse.jdt.annotation.NonNullByDefault;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodeContainer;
-import org.opendaylight.yangtools.yang.data.api.schema.tree.RequiredElementCountException;
+import org.opendaylight.yangtools.yang.data.tree.api.RequiredElementCountException;
import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
import org.opendaylight.yangtools.yang.model.api.ElementCountConstraint;
import org.opendaylight.yangtools.yang.model.api.ElementCountConstraintAware;