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 /*
  * Copyright (C) 2008 The Guava Authors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.google.common.collect.testing.features;
Optional features of classes derived from Map.

This class is GWT compatible.

Author(s):
George van den Driessche
// Enum values use constructors with generic varargs.
@SuppressWarnings("unchecked")
public enum MapFeature implements Feature<Map> {
  
The map does not throw NullPointerException on calls such as containsKey(null), get(null), or remove(null).
  ALLOWS_NULL_QUERIES,
  ALLOWS_NULL_KEYS (),
  ALLOWS_NULL_VALUES,
  RESTRICTS_KEYS,
  RESTRICTS_VALUES,
  SUPPORTS_PUT,
  SUPPORTS_REMOVE,
  FAILS_FAST_ON_CONCURRENT_MODIFICATION,
  
Indicates that the constructor or factory method of a map, usually an immutable map, throws an java.lang.IllegalArgumentException when presented with duplicate keys instead of discarding all but one.
  REJECTS_DUPLICATES_AT_CREATION,
  GENERAL_PURPOSE(
      ,
      
  );
  private final Set<Feature<? super Map>> implied;
  MapFeature(Feature<? super Map> ... implied) {
    this. = Helpers.copyToSet(implied);
  }
  public Set<Feature<? super Map>> getImpliedFeatures() {
    return ;
  }
  public @interface Require {
    public abstract MapFeature[] value() default {};
    public abstract MapFeature[] absent() default {};
  }
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