ArtifactType derived = derive(parentType, currentType);
                        props.putAll(derived.getProperties());
                        node.setArtifact(artifact.setProperties(props));
                    }
                }
            }
            stack.push(currentType);
            return true;
        }

        @Override

            Artifact artifact = result.getArtifact();
            Map<String, String> props = new HashMap<>(artifact.getProperties());
            props.put(ArtifactProperties.DOWNLOAD_URL, downloadUrl);
            result.setArtifact(artifact.setProperties(props));
        }
    }