if (next.getId().equals(id)) {
                iterator.remove();
            }
        }
    }

    @Override
    public ModelResolver newCopy() {
        return new ProjectModelResolver(this);
    }

    @Override
    public ModelSource resolveModel(String groupId, String artifactId, String version)
            throws UnresolvableModelException {

            if (remoteRepository.getId().equals(id)) {
                iterator.remove();
            }
        }
    }

    @Override
    public ModelResolver newCopy() {
        return new DefaultModelResolver(this);
    }

    @Override
    public ModelSource resolveModel(String groupId, String artifactId, String version)
            throws UnresolvableModelException {

        AvlNode<E> newTop = pred();
        // newTop is the maximum node in my left subtree
        newTop.left = left.removeMax(newTop);
        newTop.right = right;
        newTop.distinctElements = distinctElements - 1;
        newTop.totalCount = totalCount - oldElemCount;
        return newTop.rebalance();
      } else {
        AvlNode<E> newTop = succ();

        AvlNode<E> newTop = pred();
        // newTop is the maximum node in my left subtree
        newTop.left = left.removeMax(newTop);
        newTop.right = right;
        newTop.distinctElements = distinctElements - 1;
        newTop.totalCount = totalCount - oldElemCount;
        return newTop.rebalance();
      } else {
        AvlNode<E> newTop = succ();