for (LoadingCache<Object, Object> cache : caches()) {
      checkEmpty(cache);
    }
  }


  public void testInvalidate_empty() {
    for (LoadingCache<Object, Object> cache : caches()) {
      cache.getUnchecked("a");
      cache.getUnchecked("b");
      cache.invalidate("a");
      cache.invalidate("b");
      cache.invalidate(0);
      checkEmpty(cache);
    }
  }

 * the License.
 */

package com.google.common.cache;

import static com.google.common.cache.TestingCacheLoaders.bulkLoader;
import static com.google.common.cache.TestingCacheLoaders.constantLoader;
import static com.google.common.cache.TestingCacheLoaders.errorLoader;
import static com.google.common.cache.TestingCacheLoaders.exceptionLoader;
import static com.google.common.cache.TestingCacheLoaders.identityLoader;

    getAll(cache, asList(6, 8));
    CacheTesting.drainRecencyQueues(cache);
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(1, 3, 6, 8);

    // get fails to save 1, put saves 3
    cache.asMap().put(3, -3);
    getAll(cache, asList(1));
    CacheTesting.drainRecencyQueues(cache);
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(6, 8, 3);

  }

  public void testComputeIfPresent() {
    cache.put(key, "1");
    // simultaneous update for same key, expect count successful updates
    doParallelCacheOp(
        count,
        n -> {
          cache.asMap().computeIfPresent(key, (k, v) -> v + delimiter + n);
        });
    assertEquals(1, cache.size());
    assertThat(cache.getIfPresent(key).split(delimiter)).hasLength(count + 1);
  }

  }

  public void testGetAllPresent_empty() {
    Cache<Object, Object> cache =
        new AbstractCache<Object, Object>() {
          @Override
          public @Nullable Object getIfPresent(Object key) {
            return null;
          }
        };

    assertEquals(ImmutableMap.of(), cache.getAllPresent(ImmutableList.of(new Object())));
  }

 */

package com.google.common.cache;

import static com.google.common.cache.CacheBuilder.NULL_TICKER;
import static com.google.common.cache.LocalCache.DISCARDING_QUEUE;
import static com.google.common.cache.LocalCache.DRAIN_THRESHOLD;
import static com.google.common.cache.LocalCache.nullEntry;
import static com.google.common.cache.LocalCache.unset;
import static com.google.common.cache.TestingCacheLoaders.identityLoader;

 */

package com.google.common.cache;

import static com.google.common.cache.CacheBuilder.NULL_TICKER;
import static com.google.common.cache.LocalCache.DISCARDING_QUEUE;
import static com.google.common.cache.LocalCache.DRAIN_THRESHOLD;
import static com.google.common.cache.LocalCache.nullEntry;
import static com.google.common.cache.LocalCache.unset;
import static com.google.common.cache.TestingCacheLoaders.identityLoader;

    @CheckForNull transient Cache<K, V> delegate;

    ManualSerializationProxy(LocalCache<K, V> cache) {
      this(
          cache.keyStrength,
          cache.valueStrength,
          cache.keyEquivalence,
          cache.valueEquivalence,
          cache.expireAfterWriteNanos,
          cache.expireAfterAccessNanos,
          cache.maxWeight,
          cache.weigher,

  public SampleElements<Entry<String, String>> samples() {
    return new SampleElements<>(
        Helpers.mapEntry("one", "January"),
        Helpers.mapEntry("two", "February"),
        Helpers.mapEntry("three", "March"),
        Helpers.mapEntry("four", "April"),
        Helpers.mapEntry("five", "May"));
  }

  @Override
  public SampleElements<String> sampleKeys() {

 * the License.
 */

package com.google.common.cache;

import com.google.common.base.Function;
import com.google.common.base.MoreObjects;
import com.google.common.base.Objects;
import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import com.google.common.cache.LocalCache.Strength;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;