for (Object element : elements) {
        @SuppressWarnings("unchecked")
        Cell<String, Integer, Character> cell = (Cell<String, Integer, Character>) element;
        table.put(cell.getRowKey(), cell.getColumnKey(), cell.getValue());
      }
      return table.cellSet();
    }

    abstract Table<String, Integer, Character> createTable();

    @Override
    @SuppressWarnings("unchecked")

      for (Object element : elements) {
        @SuppressWarnings("unchecked")
        Cell<String, Integer, Character> cell = (Cell<String, Integer, Character>) element;
        table.put(cell.getRowKey(), cell.getColumnKey(), cell.getValue());
      }
      return table.cellSet();
    }

    abstract Table<String, Integer, Character> createTable();

    @Override
    @SuppressWarnings("unchecked")

 * @author Louis Wasserman
 * @since 2.0
 */
@GwtCompatible
/*
 * We provide and encourage use of ForwardingNavigableSet over this class, but we still provide this
 * one to preserve compatibility.
 */
@SuppressWarnings("JdkObsolete")
public abstract class ForwardingSortedMap<K extends @Nullable Object, V extends @Nullable Object>
    extends ForwardingMap<K, V> implements SortedMap<K, V> {

   */
  @SuppressWarnings("unchecked")
  public static <T extends @Nullable Object> Collector<T, ?, T> onlyElement() {
    return (Collector) ONLY_ELEMENT;
  }

  /**
   * This atrocity is here to let us report several of the elements in the stream if there were more
   * than one, not just two.
   */
  @SuppressWarnings("EmptyList") // ImmutableList doesn't support nullable element types

/** Implementation of an {@link Optional} not containing a reference. */
@GwtCompatible
final class Absent<T> extends Optional<T> {
  static final Absent<Object> INSTANCE = new Absent<>();

  @SuppressWarnings("unchecked") // implementation is "fully variant"
  static <T> Optional<T> withType() {
    return (Optional<T>) INSTANCE;
  }

  private Absent() {}

  @Override
  public boolean isPresent() {

  }

  // redeclare to help optimizers with b/310253115
  @SuppressWarnings("RedundantOverride")
  @Override
  @J2ktIncompatible
  @GwtIncompatible
    Object writeReplace() {
    return super.writeReplace();
  }

  // No longer used for new writes, but kept so that old data can still be read.
  @GwtIncompatible
  @J2ktIncompatible
  @SuppressWarnings("unused")

    }
    return ordering.compare(left, right);
  }

  @Override
  @SuppressWarnings("nullness") // should be safe, but not sure if we can avoid the warning
  public <S extends @Nullable T> Ordering<S> reverse() {
    // ordering.reverse() might be optimized, so let it do its thing
    return ordering.<T>reverse().<@NonNull S>nullsLast();
  }

  @SuppressWarnings("unchecked") // still need the right way to explain this
  @Override

  }

  @SuppressWarnings("FuturesGetCheckedIllegalExceptionType")
  public void testGetCheckedUntimed_exceptionClassNoPublicConstructor()
      throws ExceptionWithPrivateConstructor {
    assertThrows(
        IllegalArgumentException.class,
        () -> getChecked(FAILED_FUTURE_CHECKED_EXCEPTION, ExceptionWithPrivateConstructor.class));
  }

  @SuppressWarnings("FuturesGetCheckedIllegalExceptionType")

  }

  @SuppressWarnings("FuturesGetCheckedIllegalExceptionType")
  public void testGetCheckedUntimed_exceptionClassNoPublicConstructor()
      throws ExceptionWithPrivateConstructor {
    assertThrows(
        IllegalArgumentException.class,
        () -> getChecked(FAILED_FUTURE_CHECKED_EXCEPTION, ExceptionWithPrivateConstructor.class));
  }

  @SuppressWarnings("FuturesGetCheckedIllegalExceptionType")

   * equals()} contract.
   *
   * <p><b>Note:</b> this method is now unnecessary and should be treated as deprecated; use {@link
   * java.util.Objects#equals} instead.
   */
  @SuppressWarnings("InlineMeSuggester") // would introduce fully qualified references to Objects
  public static boolean equal(@Nullable Object a, @Nullable Object b) {
    return java.util.Objects.equals(a, b);
  }

  /**