+ ":" + artifact.getArtifactId()
                + ":" + artifact.getArtifactHandler().getExtension()
                + (artifact.getClassifier() == null || artifact.getClassifier().isEmpty()
                        ? ""
                        : ":" + artifact.getClassifier())
                + ":" + artifact.getVersion();
    }

    private String id(Artifact artifact) {
        return artifact.key();
    }

            SnapshotVersion sv = SnapshotVersion.newBuilder()
                    .classifier(artifact.getClassifier())
                    .extension(artifact.getExtension())
                    .version(getVersion())
                    .updated(lastUpdated)
                    .build();
            versions.put(getKey(sv.getClassifier(), sv.getExtension()), sv);
        }

        Versioning versioning = recessive.getVersioning();

            SnapshotVersion sv = SnapshotVersion.newBuilder()
                    .classifier(artifact.getClassifier())
                    .extension(artifact.getExtension())
                    .version(version)
                    .updated(lastUpdated)
                    .build();

            versions.put(getKey(sv.getClassifier(), sv.getExtension()), sv);
        }

        artifacts.clear();

        path.append(artifact.getExtension()).append("s/");

        path.append(artifact.getArtifactId()).append('-').append(artifact.getVersion());

        if (!artifact.getClassifier().isEmpty()) {
            path.append('-').append(artifact.getClassifier());
        }

        path.append('.').append(artifact.getExtension());

        return path.toString();
    }

        this(type, type);
    }

    public TestArtifactHandler(String type, String extension) {
        this.type = type;
        this.extension = extension;
    }

    @Override
    public String getClassifier() {
        return null;
    }

    @Override
    public String getDirectory() {
        return getPackaging() + "s";
    }

    @Override
    public String getExtension() {

                type = new DefaultType(
                        id,
                        languageRegistry.require(handler.getLanguage()),
                        handler.getExtension(),
                        handler.getClassifier(),
                        handler.isIncludesDependencies(),
                        JavaPathType.CLASSES,
                        JavaPathType.MODULES);
            }
            return type;
        });
    }