MultiReader(Iterator<? extends CharSource> readers) throws IOException {
    this.it = readers;
    advance();
  }

  /** Closes the current reader and opens the next one, if any. */
  private void advance() throws IOException {
    close();
    if (it.hasNext()) {
      current = it.next().openStream();
    }
  }

  @Override
  public int read(char[] cbuf, int off, int len) throws IOException {

  public TearDownStack(boolean suppressThrows) {
    this.suppressThrows = suppressThrows;
  }

  @Override
  public final void addTearDown(TearDown tearDown) {
    synchronized (lock) {
      stack.addFirst(checkNotNull(tearDown));
    }
  }

  /** Causes teardown to execute. */
  public final void runTearDown() {
    List<Throwable> exceptions = new ArrayList<>();
    List<TearDown> stackCopy;
    synchronized (lock) {

     * </p>
     *
     * @param closeable the closeable object
     * @see Closeable#close()
     */
    public static void close(final Closeable closeable) {
        if (closeable == null) {
            return;
        }
        try {
            closeable.close();
        } catch (final IOException e) {

/**
 */
@Deprecated
class DefaultMavenMetadataCacheTest {
    private RepositorySystem repositorySystem;

    @BeforeEach
    void setUp() {
        repositorySystem = new TestRepositorySystem();
    }

    @Test
    void testCacheKey() throws Exception {
        Artifact a1 = repositorySystem.createArtifact("testGroup", "testArtifact", "1.2.3", "jar");
        @SuppressWarnings("deprecation")

     * @deprecated to be removed before 2.0 after the install/deploy plugins use the alternate
     *             method
     */
    @Deprecated
    void deploy(
            String basedir,
            String finalName,
            Artifact artifact,
            ArtifactRepository deploymentRepository,
            ArtifactRepository localRepository)

     */
    public ReadingConverterChain() {
        // nothing
    }

    private final List<ReadingConverter> converters = new ArrayList<>();

    @Override
    public void init() throws IOException {
        for (final ReadingConverter converter : converters) {
            converter.init();
        }
    }

    @Override

        }
    }

    @Override
    public void printStackTrace(final PrintStream s) {
        super.printStackTrace(s);

        int count = 1;
        for (final Throwable t : throwables) {
            s.println("Cause #" + count + ":");
            t.printStackTrace(s);
            count++;
        }
    }

    @Override
    public void printStackTrace(final PrintWriter s) {

     * This includes removing associated web authentications and request headers.
     *
     * @param webConfig The web configuration to delete
     */
    public void delete(final WebConfig webConfig) {

        final String webConfigId = webConfig.getId();

        webConfigBhv.delete(webConfig, op -> {
            op.setRefreshPolicy(Constants.TRUE);
        });

 * Unit tests for {@link LineBuffer} and {@link LineReader}.
 *
 * @author Chris Nokleberg
 */
@AndroidIncompatible // occasionally very slow
@NullUnmarked
public class LineBufferTest extends IoTestCase {

  public void testProcess() throws IOException {
    bufferHelper("");
    bufferHelper("\n", "\n");
    bufferHelper("\r\n", "\r\n");
    bufferHelper("\n\r", "\n", "\r");
    bufferHelper("\r", "\r");

 * Unit tests for {@link LineBuffer} and {@link LineReader}.
 *
 * @author Chris Nokleberg
 */
@AndroidIncompatible // occasionally very slow
@NullUnmarked
public class LineBufferTest extends IoTestCase {

  public void testProcess() throws IOException {
    bufferHelper("");
    bufferHelper("\n", "\n");
    bufferHelper("\r\n", "\r\n");
    bufferHelper("\n\r", "\n", "\r");
    bufferHelper("\r", "\r");