*   <li>use {@link Appendable#append(CharSequence)} in {@link #copyTo(Appendable)} and {@link
   *       #copyTo(CharSink)}. We know this is correct since strings are immutable and so the length
   *       can't change, and it is faster because many writers and appendables are optimized for
   *       appending string instances.
   * </ul>
   */
  private static class StringCharSource extends CharSequenceCharSource {

   *   <li>use {@link Appendable#append(CharSequence)} in {@link #copyTo(Appendable)} and {@link
   *       #copyTo(CharSink)}. We know this is correct since strings are immutable and so the length
   *       can't change, and it is faster because many writers and appendables are optimized for
   *       appending string instances.
   * </ul>
   */
  private static class StringCharSource extends CharSequenceCharSource {

import java.util.TreeSet;
import java.util.stream.Collector;
import org.jspecify.annotations.Nullable;

/**
 * GWT emulation of {@link com.google.common.collect.ImmutableSortedSet}.
 *
 * @author Hayward Chan
 */
public abstract class ImmutableSortedSet<E> extends ForwardingImmutableSet<E>
    implements SortedSet<E>, SortedIterable<E> {
  // TODO(cpovirk): split into ImmutableSortedSet/ForwardingImmutableSortedSet?

     * <br>
     * <i>Remember: <code>SmbResource</code>s are immutable and therefore
     * the path associated with this <code>SmbResource</code> object will not
     * change). To access the renamed file it is necessary to construct a
     * new <code>SmbResource</code></i>.
     *
     * @param dest
     *            An <code>SmbResource</code> that represents the new pathname

import java.util.function.Consumer;
import java.util.function.UnaryOperator;
import java.util.stream.Collector;
import org.jspecify.annotations.Nullable;

/**
 * A {@link List} whose contents will never change, with many other important properties detailed at
 * {@link ImmutableCollection}.
 *
 * <p>See the Guava User Guide article on <a href=

   * request is transmitted. This is only interesting for duplex calls where the request and
   * response may be interleaved.
   *
   * Read this value only once for each enter/exit pair because its value can change.
   */
  private fun doReadTimeout() = !connection.client || sink.closed || sink.finished

  /**
   * A source that reads the incoming data frames of a stream. Although this class uses

    List<List<Integer>> input = newArrayList(list1, list2);

    Iterable<Integer> result = Iterables.concat(input);
    assertEquals(asList(1, 4), newArrayList(result));

    // Now change the inputs and see result dynamically change as well

    list1.add(2);
    List<Integer> list3 = newArrayList(3);
    input.add(1, list3);

    assertEquals(asList(1, 2, 3, 4), newArrayList(result));

     * If greatestOf() promised to be implemented as reverse().leastOf(), this
     * test would be enough. It doesn't... but we'll cheat and act like it does
     * anyway. There's a comment there to remind us to fix this if we change it.
     */
    List<Integer> list = asList(3, 1, 3, 2, 4, 2, 4, 3);
    assertEquals(asList(4, 4, 3, 3), numberOrdering.greatestOf(list, 4));
  }

  public void testGreatestOfIterator_simple() {
    /*

     * If greatestOf() promised to be implemented as reverse().leastOf(), this
     * test would be enough. It doesn't... but we'll cheat and act like it does
     * anyway. There's a comment there to remind us to fix this if we change it.
     */
    List<Integer> list = asList(3, 1, 3, 2, 4, 2, 4, 3);
    assertEquals(asList(4, 4, 3, 3), numberOrdering.greatestOf(list, 4));
  }

  public void testGreatestOfIterator_simple() {
    /*

   */
  public static List<String> readLines(File file, Charset charset) throws IOException {
    // don't use asCharSource(file, charset).readLines() because that returns
    // an immutable list, which would change the behavior of this method
    return asCharSource(file, charset)
        .readLines(
            new LineProcessor<List<String>>() {
              final List<String> result = new ArrayList<>();