*          return android.os.SystemClock.elapsedRealtimeNanos();
 *        }
 *      });
 * }
 *
 * @author Kevin Bourrillion
 * @since 10.0
 */
@GwtCompatible
@SuppressWarnings("GoodTime") // lots of violations
public final class Stopwatch {
  private final Ticker ticker;
  private boolean isRunning;
  private long elapsedNanos;
  private long startTick;

  /**

 *          return android.os.SystemClock.elapsedRealtimeNanos();
 *        }
 *      });
 * }
 *
 * @author Kevin Bourrillion
 * @since 10.0
 */
@GwtCompatible
@SuppressWarnings("GoodTime") // lots of violations
public final class Stopwatch {
  private final Ticker ticker;
  private boolean isRunning;
  private long elapsedNanos;
  private long startTick;

  /**

     * @param delay the delay between the termination of one execution and the commencement of the
     *     next
     * @param unit the time unit of the initialDelay and delay parameters
     */
    @SuppressWarnings("GoodTime") // should accept a java.time.Duration
    public static Scheduler newFixedDelaySchedule(long initialDelay, long delay, TimeUnit unit) {
      checkNotNull(unit);

 * CacheBuilder#from(CacheBuilderSpec)} or {@link CacheBuilder#from(String)}.
 *
 * @author Adam Winer
 * @since 12.0
 */
@SuppressWarnings("GoodTime") // lots of violations (nanosecond math)
@GwtIncompatible
public final class CacheBuilderSpec {
  /** Parses a single value. */
  private interface ValueParser {

 * CacheBuilder#from(CacheBuilderSpec)} or {@link CacheBuilder#from(String)}.
 *
 * @author Adam Winer
 * @since 12.0
 */
@SuppressWarnings("GoodTime") // lots of violations (nanosecond math)
@GwtIncompatible
public final class CacheBuilderSpec {
  /** Parses a single value. */
  private interface ValueParser {

   * @param scheduledExecutor The executor service to enforce the timeout.
   */
  @J2ktIncompatible
  @GwtIncompatible // ScheduledExecutorService
  @SuppressWarnings("GoodTime") // should accept a java.time.Duration
  public final FluentFuture<V> withTimeout(
      long timeout, TimeUnit unit, ScheduledExecutorService scheduledExecutor) {

   * the same name.
   *
   * @param file the file to create or update
   * @throws IOException if an I/O error occurs
   */
  @SuppressWarnings("GoodTime") // reading system time without TimeSource
  public static void touch(File file) throws IOException {
    checkNotNull(file);
    if (!file.createNewFile() && !file.setLastModified(System.currentTimeMillis())) {

  }

  /**
   * Like the unix command of the same name, creates an empty file or updates the last modified
   * timestamp of the existing file at the given path to the current system time.
   */
  @SuppressWarnings("GoodTime") // reading system time without TimeSource
  public static void touch(Path path) throws IOException {
    checkNotNull(path);

    try {

 *
 * @author Charles Fry
 * @author Bob Lee ({@code com.google.common.collect.MapMaker})
 * @author Doug Lea ({@code ConcurrentHashMap})
 */
@SuppressWarnings({
  "GoodTime", // lots of violations (nanosecond math)
  "nullness", // too much trouble for the payoff
})
@GwtCompatible
@NullUnmarked // TODO(cpovirk): Annotate for nullness.

 *
 * @author Charles Fry
 * @author Bob Lee ({@code com.google.common.collect.MapMaker})
 * @author Doug Lea ({@code ConcurrentHashMap})
 */
@SuppressWarnings({
  "GoodTime", // lots of violations (nanosecond math)
  "nullness", // too much trouble for the payoff
})
@GwtCompatible
@NullUnmarked // TODO(cpovirk): Annotate for nullness.