import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
import com.google.common.base.Preconditions;
abstract class AbstractDataTreeCandidate implements DataTreeCandidate {
import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
import com.google.common.base.Preconditions;
abstract class AbstractDataTreeCandidate implements DataTreeCandidate {