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The Adobe Experience Manager SDK

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/*
 * Copyright (C) 2009 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;

import com.google.common.annotations.GwtCompatible;

/**
 *  Implementation of {@link ImmutableListMultimap} with no entries.
 *
 *  @author Mike Ward
 *
 * @deprecated The Google Guava Core Libraries are deprecated and will not be part of the AEM SDK after April 2023
 */
@GwtCompatible(serializable = true)
@Deprecated(since = "2022-12-01")
class EmptyImmutableSetMultimap extends ImmutableSetMultimap {

    static final EmptyImmutableSetMultimap INSTANCE = new EmptyImmutableSetMultimap();

    private EmptyImmutableSetMultimap() {
        super(ImmutableMap.>of(), 0, null);
    }

    private Object readResolve() {
        // preserve singleton property
        return INSTANCE;
    }

    private static final long serialVersionUID = 0;
}