Supplier<TreeMap<Integer, Character>> factory =
        new Supplier<TreeMap<Integer, Character>>() {
          @Override
          public TreeMap<Integer, Character> get() {
            return Maps.newTreeMap();
          }
        };
    Map<String, Map<Integer, Character>> backingMap = new LinkedHashMap<>();
    Table<String, Integer, Character> table = newCustomTable(backingMap, factory);
    populate(table, data);

      NavigableMap<Cut<K>, RangeMapEntry<K, V>> entriesByLowerBound = Maps.newTreeMap();
      entriesByLowerBound.putAll(((TreeRangeMap<K, V>) rangeMap).entriesByLowerBound);
      return new TreeRangeMap<>(entriesByLowerBound);
    } else {
      NavigableMap<Cut<K>, RangeMapEntry<K, V>> entriesByLowerBound = Maps.newTreeMap();
      for (Entry<Range<K>, ? extends V> entry : rangeMap.asMapOfRanges().entrySet()) {

 */

package com.google.common.collect;

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.collect.Maps.newTreeMap;
import static java.util.Collections.singletonMap;
import static java.util.Collections.unmodifiableSortedMap;

import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.Comparator;

    assertSame(copy, ImmutableSortedMap.copyOf(copy, comparator));
    assertSame(comparator, copy.comparator());
  }

  public void testCopyOfSortedNatural() {
    SortedMap<String, Integer> original = Maps.newTreeMap();
    original.put("one", 1);
    original.put("two", 2);
    original.put("three", 3);

    ImmutableSortedMap<String, Integer> copy = ImmutableSortedMap.copyOfSorted(original);

     * @param <V> the value type of {@link TreeMap}
     * @return a new instance of {@link TreeMap}
     * @see TreeMap#TreeMap()
     */
    public static <K, V> TreeMap<K, V> newTreeMap() {
        return new TreeMap<>();
    }

    /**
     * Creates and returns a new instance of {@link TreeMap}.
     *
     * @param <K> the key type of {@link TreeMap}

    Map<String, Integer> expected = transformValues(underlying, Functions.<Integer>identity());

    assertMapsEqual(expected, expected);

    Map<String, Integer> equalToUnderlying = Maps.newTreeMap();
    equalToUnderlying.putAll(underlying);
    Map<String, Integer> map = transformValues(equalToUnderlying, Functions.<Integer>identity());
    assertMapsEqual(expected, map);

    map =

  }

  enum SortedMapImpl implements MapsImplEnum {
    TreeMapImpl {
      @Override
      public <K extends Comparable<K>, V> SortedMap<K, V> create(Map<K, V> map) {
        SortedMap<K, V> result = Maps.newTreeMap();
        result.putAll(map);
        return result;
      }
    },
    ConcurrentSkipListImpl {
      @Override
      public <K extends Comparable<K>, V> SortedMap<K, V> create(Map<K, V> map) {

  @VisibleForTesting
  List<Class<?>> findClassesToTest(
      Iterable<? extends Class<?>> classes, Iterable<String> explicitTestNames) {
    // "a.b.Foo" -> a.b.Foo.class
    TreeMap<String, Class<?>> classMap = Maps.newTreeMap();
    for (Class<?> cls : classes) {
      classMap.put(cls.getName(), cls);
    }
    // Foo.class -> [FooTest.class, FooTests.class, FooTestSuite.class, ...]

          .put(SortedMap.class, ImmutableSortedMap.of())
          .put(ImmutableSortedMap.class, ImmutableSortedMap.of())
          .put(NavigableMap.class, Maps.unmodifiableNavigableMap(Maps.newTreeMap()))
          .put(Multimap.class, ImmutableMultimap.of())
          .put(ImmutableMultimap.class, ImmutableMultimap.of())
          .put(ListMultimap.class, ImmutableListMultimap.of())

          .put(SortedMap.class, ImmutableSortedMap.of())
          .put(ImmutableSortedMap.class, ImmutableSortedMap.of())
          .put(NavigableMap.class, Maps.unmodifiableNavigableMap(Maps.newTreeMap()))
          .put(Multimap.class, ImmutableMultimap.of())
          .put(ImmutableMultimap.class, ImmutableMultimap.of())
          .put(ListMultimap.class, ImmutableListMultimap.of())