Map<K, Collection<V>> result = map;
      if (result == null) {
        result =
            map =
                Collections.unmodifiableMap(
                    Maps.transformValues(
                        delegate.asMap(), collection -> unmodifiableValueCollection(collection)));
      }
      return result;
    }

    @Override
    public Collection<Entry<K, V>> entries() {

 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.collect.Maps.transformEntries;
import static com.google.common.collect.Maps.transformValues;
import static com.google.common.collect.Maps.unmodifiableNavigableMap;
import static com.google.common.collect.testing.Helpers.mapEntry;
import static com.google.common.truth.Truth.assertThat;

 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.collect.Maps.transformEntries;
import static com.google.common.collect.Maps.transformValues;
import static com.google.common.collect.Maps.unmodifiableNavigableMap;
import static com.google.common.collect.testing.Helpers.mapEntry;
import static com.google.common.truth.Truth.assertThat;

        return collection(delegate().values(), mutex);
      }
    }

    @Override
    public Map<R, Map<C, V>> rowMap() {
      synchronized (mutex) {
        return map(
            Maps.transformValues(
                delegate().rowMap(),
                new com.google.common.base.Function<Map<C, V>, Map<C, V>>() {
                  @Override
                  public Map<C, V> apply(Map<C, V> t) {