* <td>{@literal HHmmss z}</td>
 * </tr>
 * <tr>
 * <td>Other</td>
 * <td>{@link Time#valueOf(String) JDBC escape syntax} format</td>
 * <td>{@literal HH:mm:ss}</td>
 * </tr>
 * </table>
 *
 * @author koichik
 * @see DateConversionUtil
 * @see TimestampConversionUtil
 */
public abstract class TimeConversionUtil {

    /**
     * Do not instantiate.
     */
    protected TimeConversionUtil() {

 * <td>{@literal yyyy/MM/dd H:mm:ss z}</td>
 * </tr>
 * <tr>
 * <td>{@link DateFormat#FULL} format</td>
 * <td>{@literal yyyy'年'M'月'd'日' H'時'mm'分'ss'秒' z}</td>
 * </tr>
 * </table>
 *
 * @author shinsuke
 * @see DateConversionUtil
 * @see TimeConversionUtil
 */
public abstract class TimestampConversionUtil {

    /**
     * Do not instantiate.
     */
    protected TimestampConversionUtil() {

 *     instance of G should somehow provide an instance of the class under test, plus any other
 *     information required to parameterize the test.
 * @see FeatureSpecificTestSuiteBuilder
 * @author George van den Driessche
 */
@GwtIncompatible
public abstract class PerCollectionSizeTestSuiteBuilder<
        B extends PerCollectionSizeTestSuiteBuilder<B, G, T, E>,
        G extends TestContainerGenerator<T, E>,

import java.util.Collections;
import java.util.List;
import java.util.Locale;
import java.util.Random;
import org.jspecify.annotations.NullUnmarked;

/**
 * Benchmarks for the ASCII class.
 *
 * @author Kevin Bourrillion
 */
@NullUnmarked
public class AsciiBenchmark {
  private static final String ALPHA = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";

import java.util.Arrays;
import java.util.Iterator;
import org.jspecify.annotations.NullUnmarked;

/**
 * Benchmarks {@link Joiner} against some common implementations of delimiter-based string joining.
 *
 * @author Adomas Paltanavicius
 */
@NullUnmarked
public class JoinerBenchmark {

  private static final String DELIMITER_STRING = ",";
  private static final char DELIMITER_CHARACTER = ',';

import com.google.common.primitives.Ints;
import java.util.List;
import java.util.Random;
import org.jspecify.annotations.NullUnmarked;

/**
 * Benchmarks for the {@code TreeTraverser} operations on binary trees.
 *
 * @author Louis Wasserman
 */
@NullUnmarked
public class BinaryTreeTraverserBenchmark {
  private static class BinaryNode {
    final int x;
    final Optional<BinaryNode> left;
    final Optional<BinaryNode> right;

import org.junit.Ignore;

/**
 * A generic JUnit test which tests {@link Map#computeIfPresent}. Can't be invoked directly; please
 * see {@link com.google.common.collect.testing.MapTestSuiteBuilder}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.

 * map is immutable).
 *
 * <p>This class is tailored toward use cases in common.graph. It is *NOT* a general purpose map.
 *
 * @author James Sexton
 */
class MapIteratorCache<K, V> {
  private final Map<K, V> backingMap;

  /*
   * Per JDK: "the behavior of a map entry is undefined if the backing map has been modified after

import java.util.NoSuchElementException;
import java.util.SortedSet;
import org.jspecify.annotations.Nullable;

/**
 * Provides static utility methods for creating and working with {@link SortedMultiset} instances.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
final class SortedMultisets {
  private SortedMultisets() {}

  /** A skeleton implementation for {@link SortedMultiset#elementSet}. */

 *
 * <p>See the Guava User Guide article on <a href=
 * "https://github.com/google/guava/wiki/NewCollectionTypesExplained#table">{@code Table}</a>.
 *
 * @author Jared Levy
 * @since 7.0
 */
@GwtCompatible
public class HashBasedTable<R, C, V> extends StandardTable<R, C, V> {
  private static final class Factory<C, V> implements Supplier<Map<C, V>>, Serializable {