public DataChangeListener(AsyncDataChangeListener<YangInstanceIdentifier,
NormalizedNode<?, ?>> listener) {
this.listener = Preconditions.checkNotNull(listener, "listener should not be null");
}
public DataChangeListener(AsyncDataChangeListener<YangInstanceIdentifier,
NormalizedNode<?, ?>> listener) {
this.listener = Preconditions.checkNotNull(listener, "listener should not be null");
}