}
    }
  }

  private static final class EmptyCharSource extends StringCharSource {

    private static final EmptyCharSource INSTANCE = new EmptyCharSource();

    private EmptyCharSource() {
      super("");
    }

    @Override
    public String toString() {
      return "CharSource.empty()";
    }
  }

  private static final class ConcatenatedCharSource extends CharSource {

 */

package com.google.common.collect;

import static com.google.common.base.Strings.isNullOrEmpty;
import static com.google.common.collect.Iterables.concat;
import static com.google.common.collect.Lists.newArrayList;
import static com.google.common.collect.Lists.newLinkedList;
import static com.google.common.truth.Truth.assertThat;
import static java.util.Collections.nCopies;

 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.collect.CollectPreconditions.checkRemove;
import static com.google.common.collect.CompactHashing.UNSET;
import static com.google.common.collect.Hashing.smearedHash;
import static java.lang.Math.max;
import static java.lang.Math.min;
import static java.util.Objects.requireNonNull;

import com.google.common.annotations.GwtIncompatible;

 */

package com.google.common.collect;

import static com.google.common.base.Predicates.equalTo;
import static com.google.common.collect.Iterables.removeIf;
import static com.google.common.collect.Lists.newArrayList;
import static com.google.common.collect.Maps.immutableEntry;
import static com.google.common.collect.ReflectionFreeAssertThrows.assertThrows;
import static com.google.common.collect.Sets.newHashSet;

/** Tests for repeated node and edge addition and removal in a {@link Graph}. */
@RunWith(JUnit4.class)

public final class GraphMutationTest {
  private static final int NUM_TRIALS = 50;
  private static final int NUM_NODES = 100;
  private static final int NUM_EDGES = 1000;
  private static final int NODE_POOL_SIZE = 1000; // must be >> NUM_NODES

  @Test
  public void directedGraph() {
    testGraphMutation(GraphBuilder.directed());
  }

/**
 * Static utility methods pertaining to the {@link Callable} interface.
 *
 * @author Isaac Shum
 * @since 1.0
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
public final class Callables {
  private Callables() {}

  /** Creates a {@code Callable} which immediately returns a preset value each time it is called. */

public class KuromojiTokenizerFactory extends AbstractTokenizerFactory {

    private static final String USER_DICT_PATH_OPTION = "user_dictionary";
    private static final String USER_DICT_RULES_OPTION = "user_dictionary_rules";
    private static final String NBEST_COST = "nbest_cost";
    private static final String NBEST_EXAMPLES = "nbest_examples";

    private final UserDictionary userDictionary;

import static com.google.common.base.Functions.constant;
import static com.google.common.base.MoreObjects.toStringHelper;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.base.Preconditions.checkState;
import static com.google.common.collect.Lists.asList;

 * the License.
 */

package com.google.common.collect.testing.google;

import static com.google.common.collect.testing.Helpers.copyToSet;
import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_PUT;
import static java.util.Arrays.asList;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.SetMultimap;

 * the License.
 */

package com.google.common.collect.testing.google;

import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_PUT;
import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_REMOVE;
import static java.util.Arrays.asList;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.SetMultimap;