Set<Feature<?>> derivedFeatures = copyToSet(multimapFeatures);
    derivedFeatures.remove(CollectionFeature.SERIALIZABLE);
    derivedFeatures.remove(CollectionFeature.SERIALIZABLE_INCLUDING_VIEWS);
    return derivedFeatures;
  }

  private static Set<Feature<?>> computeAsMapFeatures(Set<Feature<?>> multimapFeatures) {
    Set<Feature<?>> derivedFeatures = copyToSet(multimapFeatures);

    } catch (Exception e) {
      throw new IllegalArgumentException("Error extracting features from tester annotation.", e);
    }
    Set<Feature<?>> allPresentFeatures = addImpliedFeatures(copyToSet(presentFeatures));
    Set<Feature<?>> allAbsentFeatures = copyToSet(absentFeatures);
    if (!disjoint(allPresentFeatures, allAbsentFeatures)) {
      throw new ConflictingRequirementsException(
          "Annotation explicitly or "

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect.testing.features;

import static com.google.common.collect.testing.Helpers.copyToSet;

import com.google.common.annotations.GwtCompatible;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.Set;

/**

 * the License.
 */

package com.google.common.collect.testing.google;

import static com.google.common.collect.testing.Helpers.copyToSet;
import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_PUT;
import static java.util.Arrays.asList;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.SetMultimap;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect.testing.features;

import static com.google.common.collect.testing.Helpers.copyToSet;

import com.google.common.annotations.GwtCompatible;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.util.List;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect.testing.features;

import static com.google.common.collect.testing.Helpers.copyToSet;
import static java.util.Collections.emptySet;

import com.google.common.annotations.GwtCompatible;
import java.lang.annotation.Inherited;
import java.lang.annotation.Retention;

 * the License.
 */

package com.google.common.collect.testing.google;

import static com.google.common.collect.testing.Helpers.copyToList;
import static com.google.common.collect.testing.Helpers.copyToSet;
import static com.google.common.collect.testing.features.CollectionSize.ZERO;
import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_VALUES;

    } catch (Exception e) {
      throw new IllegalArgumentException("Error extracting features from tester annotation.", e);
    }
    Set<Feature<?>> allPresentFeatures = addImpliedFeatures(copyToSet(presentFeatures));
    Set<Feature<?>> allAbsentFeatures = copyToSet(absentFeatures);
    if (!disjoint(allPresentFeatures, allAbsentFeatures)) {
      throw new ConflictingRequirementsException(
          "Annotation explicitly or "

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.google.common.collect.testing.google;

import static com.google.common.collect.testing.Helpers.copyToSet;
import static com.google.common.collect.testing.Helpers.mapEntry;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.SetMultimap;
import com.google.common.collect.testing.SampleElements;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.google.common.collect.testing.google;

import static com.google.common.collect.testing.Helpers.copyToSet;
import static com.google.common.collect.testing.Helpers.mapEntry;

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.SetMultimap;
import com.google.common.collect.testing.SampleElements;