* href="https://github.com/google/guava/wiki/CachesExplained">caches</a>.
 *
 * <p>This package is a part of the open-source <a href="https://github.com/google/guava">Guava</a>
 * library.
 *
 * @author Charles Fry
 */
@CheckReturnValue
@ParametersAreNonnullByDefault
package com.google.common.cache;

import com.google.errorprone.annotations.CheckReturnValue;

 *
 * <p>Note that {@link #get}, {@link #getUnchecked}, and {@link #apply} all expose the same
 * underlying functionality, so should probably be overridden as a group.
 *
 * @author Charles Fry
 * @since 11.0
 */
@GwtIncompatible
@ElementTypesAreNonnullByDefault
public abstract class ForwardingLoadingCache<K, V> extends ForwardingCache<K, V>
    implements LoadingCache<K, V> {

import com.google.common.collect.ImmutableMap;
import java.util.concurrent.ExecutionException;
import junit.framework.TestCase;

/**
 * Unit test for {@link ForwardingCache}.
 *
 * @author Charles Fry
 */
public class ForwardingCacheTest extends TestCase {
  private Cache<String, Boolean> forward;
  private Cache<String, Boolean> mock;

  @SuppressWarnings({"unchecked", "DoNotMock"}) // mock
  @Override

import com.google.common.cache.LocalCache.Segment;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Benchmark for {@code LocalCache.Segment.removeEntryFromChain}.
 *
 * @author Charles Fry
 */
@SuppressWarnings("CheckReturnValue")
public class ChainBenchmark {

  @Param({"1", "2", "3", "4", "5", "6"})
  int length;

  private Segment<Object, Object> segment;

import java.util.concurrent.Future;
import java.util.concurrent.atomic.AtomicInteger;
import junit.framework.TestCase;

/**
 * Unit tests for {@link CacheLoader}.
 *
 * @author Charles Fry
 */
public class CacheLoaderTest extends TestCase {

  private static class QueuingExecutor implements Executor {
    private final Deque<Runnable> tasks = Queues.newArrayDeque();

    @Override

import com.google.common.collect.ImmutableMap;
import java.util.concurrent.ExecutionException;
import junit.framework.TestCase;

/**
 * Unit test for {@link ForwardingLoadingCache}.
 *
 * @author Charles Fry
 */
public class ForwardingLoadingCacheTest extends TestCase {
  private LoadingCache<String, Boolean> forward;
  private LoadingCache<String, Boolean> mock;

  @SuppressWarnings({"unchecked", "DoNotMock"}) // mock

 * in terms of {@link #invalidate}. The method {@link #cleanUp} is a no-op. All other methods throw
 * an {@link UnsupportedOperationException}.
 *
 * @author Charles Fry
 * @since 11.0
 */
@GwtIncompatible
@ElementTypesAreNonnullByDefault
public abstract class AbstractLoadingCache<K, V> extends AbstractCache<K, V>
    implements LoadingCache<K, V> {

 * in terms of {@link #invalidate}. The method {@link #cleanUp} is a no-op. All other methods throw
 * an {@link UnsupportedOperationException}.
 *
 * @author Charles Fry
 * @since 11.0
 */
@GwtIncompatible
@ElementTypesAreNonnullByDefault
public abstract class AbstractLoadingCache<K, V> extends AbstractCache<K, V>
    implements LoadingCache<K, V> {

 *
 * <p>Note that {@link #get}, {@link #getUnchecked}, and {@link #apply} all expose the same
 * underlying functionality, so should probably be overridden as a group.
 *
 * @author Charles Fry
 * @since 11.0
 */
@GwtIncompatible
@ElementTypesAreNonnullByDefault
public abstract class ForwardingLoadingCache<K, V> extends ForwardingCache<K, V>
    implements LoadingCache<K, V> {

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;
import junit.framework.TestCase;

/** @author Charles Fry */
public class LocalLoadingCacheTest extends TestCase {

  private static <K, V> LocalLoadingCache<K, V> makeCache(
      CacheBuilder<K, V> builder, CacheLoader<? super K, V> loader) {