public Settings read(@Nonnull XmlReaderRequest request) throws XmlReaderException {
        nonNull(request, "request");
        Reader reader = request.getReader();
        InputStream inputStream = request.getInputStream();
        if (reader == null && inputStream == null) {
            throw new IllegalArgumentException("reader or inputStream must be non null");
        }
        try {
            InputSource source = null;

        Map<String, String> headers = (Map<String, String>) systemSessionFactory
                .newRepositorySession(request)
                .getConfigProperties()
                .get(ConfigurationProperties.HTTP_HEADERS + "." + server.getId());
        assertNotNull(headers);
        assertEquals(1, headers.size());
        assertEquals("value", headers.get("header"));
    }

    @Test

        for (WorkspaceReader reader : readers) {
            versions.addAll(reader.findVersions(artifact));
        }

        return Collections.unmodifiableList(new ArrayList<>(versions));
    }

    public void setReaders(Collection<WorkspaceReader> readers) {
        requireNonNull(readers, "readers");
        // skip possible null entries
        this.readers = Collections.unmodifiableList(

        try (InputStream is = Files.newInputStream(settingsFile.toPath())) {
            SettingsStaxReader reader = new SettingsStaxReader();
            InputSource source = new InputSource(settingsFile.toString());
            return new Settings(reader.read(is, true, source));
        }
    }

    }

    public static WorkspaceRepository getWorkspace(RepositorySystemSession session) {
        WorkspaceReader reader = session.getWorkspaceReader();
        return (reader != null) ? reader.getRepository() : null;
    }

    public static boolean repositoriesEquals(List<RemoteRepository> r1, List<RemoteRepository> r2) {
        if (r1.size() != r2.size()) {

        return read(Files.newInputStream(input.toPath()), options);
    }

    public Metadata read(Reader input, Map<String, ?> options) throws IOException {
        Objects.requireNonNull(input, "input cannot be null");

        try (Reader in = input) {
            return new Metadata(new MetadataStaxReader().read(in, isStrict(options)));
        } catch (XMLStreamException e) {

            version = artifact.getVersion();
            localRepo = session.getLocalRepository().getBasePath();
            WorkspaceReader reader = session.getWorkspaceReader();
            workspace = (reader != null) ? reader.getRepository() : null;
            repositories = new ArrayList<>(request.getRepositories().size());
            boolean repoMan = false;

                        }
                    }
                }

                // org.eclipse.aether.ConfigurationProperties.HTTP_HEADERS => Map<String, String>
                if (headers != null) {
                    configProps.put(ConfigurationProperties.HTTP_HEADERS + "." + server.getId(), headers);
                }
                // org.eclipse.aether.ConfigurationProperties.CONNECT_TIMEOUT => int

        ExtensionDescriptor extensionDescriptor = new ExtensionDescriptor();

        XmlNode dom;
        try {
            XMLStreamReader reader = WstxInputFactory.newFactory().createXMLStreamReader(is);
            dom = XmlNodeStaxBuilder.build(reader);
        } catch (XMLStreamException e) {
            throw new IOException(e.getMessage(), e);
        }

        if (!"extension".equals(dom.getName())) {

        // [01] clean:clean
        // [02] modello:xpp3-writer
        // [03] modello:java
        // [04] modello:xpp3-reader
        // [05] modello:xpp3-writer
        // [06] modello:java
        // [07] modello:xpp3-reader
        // [08] plugin:descriptor
        // [09] resources:resources
        // [10] compiler:compile
        // [11] resources:testResources