package net.pterodactylus.sone.core;
-import static com.google.common.base.Optional.absent;
-import static com.google.common.base.Optional.of;
import static com.google.common.base.Ticker.systemTicker;
import static java.util.concurrent.TimeUnit.NANOSECONDS;
import com.google.common.annotations.VisibleForTesting;
import com.google.common.base.Objects;
-import com.google.common.base.Optional;
import com.google.common.base.Ticker;
/**