return null;
        } else if (file.isAbsolute()) {
            return file;
        } else if (file.getPath().startsWith(File.separator)) {
            // drive-relative Windows path
            return file.getAbsoluteFile();
        } else {
            return Paths.get(baseDirectory, file.getPath()).normalize().toFile();
        }
    }

    }

    @Override
    public E getFirst() {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.getFirst();
    }

    @Override
    public E getLast() {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.getLast();
    }

    @Override
    public @Nullable E peekFirst() {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.peekFirst();
    }

        final PathInfo pi = convertToItem(id);
        if (StringUtil.isEmpty(pi.getPath()) && StringUtil.isEmpty(pi.getName())) {
            return StringUtil.EMPTY;
        }
        if (StringUtil.isEmpty(pi.getPath())) {
            return pi.getName();
        }
        return pi.getPath() + "/" + pi.getName();
    }

    public static PathInfo convertToItem(final String id) {

        Path mavenHome = fs.getPath("/maven");
        Files.createDirectories(mavenHome);
        Path mavenConf = mavenHome.resolve("conf");
        Files.createDirectories(mavenConf);
        Path mavenUserProps = mavenConf.resolve("maven.properties");
        Files.writeString(mavenUserProps, "${includes} = ?\"/user/ma ven.properties\",  ?/foo/bar\n");
        Path userDirectory = fs.getPath("/user");

        System.out.println("serving docs at http://localhost:" + getPort().get());
        DeploymentRegistry registry = getDeploymentRegistry();
        JavaApplicationHandle handle = registry.get(getPath(), JavaApplicationHandle.class);
        if (handle == null) {
            JavaExecHandleBuilder builder = getExecActionFactory().newJavaExec();

/**
 * An XML writer request.
 *
 * @since 4.0.0
 * @param <T> the object type to read
 */
@Experimental
public interface XmlWriterRequest<T> {

    @Nullable
    Path getPath();

    @Nullable
    OutputStream getOutputStream();

    @Nullable
    Writer getWriter();

    @Nonnull
    T getContent();

    @Nullable

    assertEquals("c", Iterables.getLast(list));
  }

  public void testGetLast_emptyList() {
    List<String> list = emptyList();
    assertThrows(NoSuchElementException.class, () -> Iterables.getLast(list));
  }

  public void testGetLast_sortedSet() {
    SortedSet<String> sortedSet = ImmutableSortedSet.of("b", "c", "a");
    assertEquals("c", Iterables.getLast(sortedSet));
  }

                    syncContext.acquire(null, Collections.singleton(metadata));

                    if (metadata.getPath() != null && Files.exists(metadata.getPath())) {
                        try (InputStream in = Files.newInputStream(metadata.getPath())) {
                            versioning = new Versioning(
                                    new MetadataStaxReader().read(in, false).getVersioning());

    @Inject
    public DefaultArtifactManager(@Nonnull InternalMavenSession session) {
        this.session = session;
    }

    @Nonnull
    @Override
    public Optional<Path> getPath(@Nonnull Artifact artifact) {
        String id = id(nonNull(artifact, "artifact"));
        if (session.getMavenSession().getAllProjects() != null) {

  assertEquals("/v1/chat/messages/", request1.getPath());
  assertNotNull(request1.getHeader("Authorization"));

  RecordedRequest request2 = server.takeRequest();
  assertEquals("/v1/chat/messages/2", request2.getPath());

  RecordedRequest request3 = server.takeRequest();
  assertEquals("/v1/chat/messages/3", request3.getPath());

  // Shut down the server. Instances cannot be reused.
  server.shutdown();