if (occurrences == 0) {
      return count(element);
    }
    int index = e.ordinal();
    int oldCount = counts[index];
    if (oldCount == 0) {
      return 0;
    } else if (oldCount <= occurrences) {
      counts[index] = 0;
      distinctElements--;
      size -= oldCount;
    } else {
      counts[index] = oldCount - occurrences;
      size -= occurrences;
    }
    return oldCount;
  }

  public void remove(Range<K> rangeToRemove) {
    if (rangeToRemove.isEmpty()) {
      return;
    }

    /*
     * The comments for this method will use [ ] to indicate the bounds of rangeToRemove and ( ) to
     * indicate the bounds of ranges in the range map.
     */
    Entry<Cut<K>, RangeMapEntry<K, V>> mapEntryBelowToTruncate =
        entriesByLowerBound.lowerEntry(rangeToRemove.lowerBound);

package com.google.common.collect;

import com.google.common.annotations.GwtCompatible;
import java.util.SortedSet;
import junit.framework.TestCase;

/**
 * Unit tests for {@code SortedIterables}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public class SortedIterablesTest extends TestCase {
  public void testSameComparator() {

import java.util.Map.Entry;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Creates bimaps, containing sample entries, to be tested.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public interface TestBiMapGenerator<K extends @Nullable Object, V extends @Nullable Object>
    extends TestContainerGenerator<BiMap<K, V>, Entry<K, V>> {

import java.util.Map.Entry;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Creates bimaps, containing sample entries, to be tested.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public interface TestBiMapGenerator<K extends @Nullable Object, V extends @Nullable Object>
    extends TestContainerGenerator<BiMap<K, V>, Entry<K, V>> {

import com.google.common.annotations.GwtCompatible;
import com.google.common.base.Functions;
import java.util.Collection;
import java.util.Map;

/**
 * Tests for Multimaps.transformValues().asMap().
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public class MultimapsTransformValuesAsMapTest extends AbstractMultimapAsMapImplementsMapTest {

  public MultimapsTransformValuesAsMapTest() {

import com.google.common.annotations.GwtCompatible;
import com.google.common.base.Functions;
import java.util.Collection;
import java.util.Map;

/**
 * Tests for Multimaps.transformValues().asMap().
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public class MultimapsTransformValuesAsMapTest extends AbstractMultimapAsMapImplementsMapTest {

  public MultimapsTransformValuesAsMapTest() {

import com.google.common.annotations.GwtCompatible;
import junit.framework.TestCase;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Tests for {@link RegularImmutableAsList}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public class RegularImmutableAsListTest extends TestCase {
  /**

import java.util.Collection;
import java.util.Map.Entry;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Creates multimaps, containing sample elements, to be tested.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public interface TestMultimapGenerator<
        K extends @Nullable Object, V extends @Nullable Object, M extends Multimap<K, V>>

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

/**
 * Generates {@code List<Character>} instances for test suites.
 *
 * @author Kevin Bourrillion
 * @author Louis Wasserman
 */
@GwtCompatible
@ElementTypesAreNonnullByDefault
public abstract class TestCharacterListGenerator implements TestListGenerator<Character> {
  @Override
  public SampleElements<Character> samples() {