* Acknowledge: A communication control character transmitted by a receiver as an affirmative
   * response to a sender.
   *
   * @since 8.0
   */
  public static final byte ACK = 6;

  /**
   * Bell ('\a'): A character for use when there is a need to call for human attention. It may
   * control alarm or attention devices.
   *
   * @since 8.0
   */
  public static final byte BEL = 7;

  /**

falling down a very deep well.

  Either the well was very deep, or she fell very slowly, for she
had plenty of time as she went down to look about her and to
wonder what was going to happen next.  First, she tried to look
down and make out what she was coming to, but it was too dark to
see anything; then she looked at the sides of the well, and
noticed that they were filled with cupboards and book-shelves;

    }

    @Override
    public Set<Cell<String, Integer, Character>> create(Object... elements) {
      Table<String, Integer, Character> table = createTable();
      for (Object element : elements) {
        @SuppressWarnings("unchecked")
        Cell<String, Integer, Character> cell = (Cell<String, Integer, Character>) element;
        table.put(cell.getRowKey(), cell.getColumnKey(), cell.getValue());
      }

  private final @Nullable V[][] values;

  // For each cell in iteration order, the index of that cell's row key in the row key list.
  @SuppressWarnings("Immutable") // We don't modify this after construction.
  private final int[] cellRowIndices;

  // For each cell in iteration order, the index of that cell's column key in the column key list.

      for (MutableCell<R, C, V> cell : other.insertionOrder) {
        put(cell.getRowKey(), cell.getColumnKey(), cell.getValue(), merger);
      }
      return this;
    }

    ImmutableTable<R, C, V> toTable() {
      return ImmutableTable.copyOf(insertionOrder);
    }
  }

  @IgnoreJRERequirement // see enclosing class (whose annotation Animal Sniffer ignores here...)

          // Check that we have a well-formed surrogate pair.
          if (Character.codePointAt(sequence, i) == c) {
            throw new IllegalArgumentException(unpairedSurrogateMsg(i));
          }
          i++;
        }
      }
    }
    return utf8Length;
  }

  /**
   * Returns {@code true} if {@code bytes} is a <i>well-formed</i> UTF-8 byte sequence according to

  }

  public void testHashing() throws Exception {
    for (String stringToTest : INPUTS) {
      for (Table.Cell<String, SecretKey, HashFunction> cell : ALGORITHMS.cellSet()) {
        String algorithm = cell.getRowKey();
        SecretKey key = cell.getColumnKey();
        HashFunction hashFunc = cell.getValue();
        assertMacHashing(HashTestUtils.ascii(stringToTest), algorithm, key, hashFunc);
      }
    }
  }

    assertChecksum(ADLER_32, "");
    assertChecksum(ADLER_32, "Z");
    assertChecksum(ADLER_32, "foobar");
  }

  public void testCrc32_knownValues() throws Exception {
    assertHash32(0x1C8600E3, CRC_32, "hell");
    assertHash32(0x3610A686, CRC_32, "hello");
    assertHash32(0xED81F9F6, CRC_32, "hello ");
    assertHash32(0x4850DDC2, CRC_32, "hello w");
    assertHash32(0x7A2D6005, CRC_32, "hello wo");

  4. Please squash all commits for a change into a single commit (this can be
     done using `git rebase -i`). Do your best to have a
     [well-formed commit message][] for the change.

[Java style guide]: https://google.github.io/styleguide/javaguide.html
[well-formed commit message]: https://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html

#### Merging pull requests ####

import com.google.common.collect.testing.SampleElements.Unhashables;
import java.util.Collection;
import java.util.List;

/**
 * Creates collections containing unhashable sample elements, to be tested.
 *
 * @author Regina O'Dell
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public abstract class TestUnhashableCollectionGenerator<T extends Collection<UnhashableObject>>
    implements TestCollectionGenerator<UnhashableObject> {
  @Override