this.type = type;
        }

        @Override
        public String getId() {
            return type.id();
        }

        @Override
        public String getExtension() {
            return type.getExtension();
        }

        @Override
        public String getClassifier() {
            return type.getClassifier() == null ? "" : type.getClassifier();
        }

        @Override

     */
    static String conflictKey(DependencyNode node) {
        var a = node.getArtifact();
        return a.getGroupId() + ':' + a.getArtifactId() + ':' + a.getExtension() + ':' + a.getClassifier();
    }

                    currentType = registry.get(node.getArtifact()
                            .getProperty(
                                    ArtifactProperties.TYPE, node.getArtifact().getExtension()));
                    if (currentType == null) {
                        currentType = jar;
                    }
                }
                if (!stack.isEmpty()) {