assertEquals(
                "sources", target.getVersioning().getSnapshotVersions().get(0).getClassifier());
        assertEquals("jar", target.getVersioning().getSnapshotVersions().get(0).getExtension());
        assertEquals(
                "20200710072412",
                target.getVersioning().getSnapshotVersions().get(0).getUpdated());
    }

    @Test

                type = new DefaultType(
                        id,
                        languageRegistry.lookup(handler.getLanguage()).orElseGet(() -> handler::getLanguage),
                        handler.getExtension(),
                        handler.getClassifier(),
                        handler.isIncludesDependencies(),
                        handler.isAddedToClasspath()

    }

    public String getType() {
        return type;
    }

    @Override
    public String getExtension() {
        if (extension == null) {
            return type;
        }
        return extension;
    }

    public void setExtension(final String extension) {
        this.extension = extension;
    }

    @Override
    public String getClassifier() {

            oldExtension.setClassLoadingStrategy(extension.getClassLoadingStrategy());
        }
        this.extension = oldExtension;
    }

    public CoreExtension getExtension() {
        return extension;
    }

            return null;
        }

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

        @Override
        public String getExtension() {
            return "pom";
        }

        @Override
        public String getLanguage() {
            return "none";
        }

        @Override
        public String getPackaging() {

    /**
     * Returns the file name extension of the artifact;
     * e.g. "jar", "pom", "xml", etc.
     *
     * @return the file extension
     */
    String getExtension();

    String getDirectory();

    /**
     * Returns the default classifier used if a different one is not set in pom.xml.
     *
     * @return the classifier
     */
    String getClassifier();

            ArtifactRepository deploymentRepository,
            ArtifactRepository localRepository)
            throws ArtifactDeploymentException {
        String extension = artifact.getArtifactHandler().getExtension();
        File source = new File(basedir, finalName + "." + extension);
        deploy(source, artifact, deploymentRepository, localRepository);
    }

    @Override
    public void deploy(

        return allHandlers.computeIfAbsent(id, k -> {
            Type type = typeRegistry.require(id);
            return new DefaultArtifactHandler(
                    id,
                    type.getExtension(),
                    type.getClassifier(),
                    null,
                    null,
                    type.isIncludesDependencies(),
                    type.getLanguage().id(),

                session,
                artifact.getGroupId(),
                artifact.getArtifactId(),
                artifact.getVersion().toString(),
                artifact.getClassifier(),
                artifact.getExtension(),
                null));
    }

    }

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

    @Override
    public Language getLanguage() {
        return language;
    }

    @Override
    public String getExtension() {
        return extension;
    }

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

    @Override
    public boolean isIncludesDependencies() {