}

    static final class DuplicateKey {
      private final Object key;
      private final Object value1;
      private final Object value2;

      DuplicateKey(Object key, Object value1, Object value2) {
        this.key = key;
        this.value1 = value1;
        this.value2 = value2;
      }

      IllegalArgumentException exception() {
        return new IllegalArgumentException(

import java.util.Map;

@GwtCompatible
@ElementTypesAreNonnullByDefault
public class UnmodifiableRowSortedTableRowTest extends RowTests {
  public UnmodifiableRowSortedTableRowTest() {
    super(false, false, false, false, false);
  }

  @Override
  Table<Character, String, Integer> makeTable() {
    RowSortedTable<Character, String, Integer> table = TreeBasedTable.create();
    return unmodifiableRowSortedTable(table);
  }

import java.util.Map;

@GwtCompatible
@ElementTypesAreNonnullByDefault
public class UnmodifiableRowSortedTableRowTest extends RowTests {
  public UnmodifiableRowSortedTableRowTest() {
    super(false, false, false, false, false);
  }

  @Override
  Table<Character, String, Integer> makeTable() {
    RowSortedTable<Character, String, Integer> table = TreeBasedTable.create();
    return unmodifiableRowSortedTable(table);
  }

import java.util.Map;

@GwtCompatible
@ElementTypesAreNonnullByDefault
public class UnmodifiableTableColumnTest extends ColumnTests {
  public UnmodifiableTableColumnTest() {
    super(false, false, false, false, false);
  }

  @Override
  Table<String, Character, Integer> makeTable() {
    Table<String, Character, Integer> table = HashBasedTable.create();
    return unmodifiableTable(table);
  }

  @Override

import java.util.Map;

@GwtCompatible
@ElementTypesAreNonnullByDefault
public class UnmodifiableTableColumnMapTest extends ColumnMapTests {
  public UnmodifiableTableColumnMapTest() {
    super(false, false, false, false);
  }

  @Override
  Table<Integer, String, Character> makeTable() {
    Table<Integer, String, Character> original = HashBasedTable.create();
    return unmodifiableTable(original);
  }

  @Override

import java.util.SortedMap;

@GwtCompatible
@ElementTypesAreNonnullByDefault
public class UnmodifiableRowSortedTableRowMapTest extends RowMapTests {
  public UnmodifiableRowSortedTableRowMapTest() {
    super(false, false, false, false);
  }

  @Override
  RowSortedTable<String, Integer, Character> makeTable() {
    RowSortedTable<String, Integer, Character> original = TreeBasedTable.create();
    return unmodifiableRowSortedTable(original);

import java.util.Map;

@GwtCompatible
@ElementTypesAreNonnullByDefault
public class UnmodifiableTableRowMapTest extends RowMapTests {
  public UnmodifiableTableRowMapTest() {
    super(false, false, false, false);
  }

  @Override
  Table<String, Integer, Character> makeTable() {
    Table<String, Integer, Character> original = HashBasedTable.create();
    return unmodifiableTable(original);
  }

  @Override

import java.util.Map;

@GwtCompatible
@ElementTypesAreNonnullByDefault
public class UnmodifiableRowSortedTableColumnMapTest extends ColumnMapTests {
  public UnmodifiableRowSortedTableColumnMapTest() {
    super(false, false, false, false);
  }

  @Override
  Table<Integer, String, Character> makeTable() {
    RowSortedTable<Integer, String, Character> original = TreeBasedTable.create();
    return unmodifiableRowSortedTable(original);
  }

import java.util.Map;

@GwtCompatible
@ElementTypesAreNonnullByDefault
public class UnmodifiableTableRowMapTest extends RowMapTests {
  public UnmodifiableTableRowMapTest() {
    super(false, false, false, false);
  }

  @Override
  Table<String, Integer, Character> makeTable() {
    Table<String, Integer, Character> original = HashBasedTable.create();
    return unmodifiableTable(original);
  }

  @Override

import java.util.Map;

@GwtCompatible
@ElementTypesAreNonnullByDefault
public class UnmodifiableTableColumnMapTest extends ColumnMapTests {
  public UnmodifiableTableColumnMapTest() {
    super(false, false, false, false);
  }

  @Override
  Table<Integer, String, Character> makeTable() {
    Table<Integer, String, Character> original = HashBasedTable.create();
    return unmodifiableTable(original);
  }

  @Override