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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;

import com.google.common.annotations.GwtCompatible;
import com.google.common.base.Function;
import com.google.common.base.Predicate;
import com.google.common.collect.Maps.EntryTransformer;
import java.lang.reflect.Array;
import java.util.Collections;
import java.util.Map;
import java.util.NavigableMap;
import java.util.NavigableSet;
import java.util.Set;
import java.util.SortedMap;
import java.util.SortedSet;

/**
 *  Methods factored out so that they can be emulated differently in GWT.
 *
 *  @author Hayward Chan
 *
 * @deprecated The Google Guava Core Libraries are deprecated and will not be part of the AEM SDK after April 2023
 */
@GwtCompatible(emulated = true)
@Deprecated(since = "2022-12-01")
class Platform {

    /**
     * Returns a new array of the given length with the same type as a reference
     * array.
     *
     * @param reference any array of the desired type
     * @param length the length of the new array
     */
    static  T[] newArray(T[] reference, int length) {
        Class type = reference.getClass().getComponentType();
        // the cast is safe because
        // result.getClass() == reference.getClass().getComponentType()
        @SuppressWarnings("unchecked")
        T[] result = (T[]) Array.newInstance(type, length);
        return result;
    }

    static  Set newSetFromMap(Map map) {
        return Collections.newSetFromMap(map);
    }

    /**
     * Configures the given map maker to use weak keys, if possible; does nothing
     * otherwise (i.e., in GWT). This is sometimes acceptable, when only
     * server-side code could generate enough volume that reclamation becomes
     * important.
     */
    static MapMaker tryWeakKeys(MapMaker mapMaker) {
        return mapMaker.weakKeys();
    }

    static  SortedMap mapsTransformEntriesSortedMap(SortedMap fromMap, EntryTransformer transformer) {
        return (fromMap instanceof NavigableMap) ? Maps.transformEntries((NavigableMap) fromMap, transformer) : Maps.transformEntriesIgnoreNavigable(fromMap, transformer);
    }

    static  SortedMap mapsAsMapSortedSet(SortedSet set, Function function) {
        return (set instanceof NavigableSet) ? Maps.asMap((NavigableSet) set, function) : Maps.asMapSortedIgnoreNavigable(set, function);
    }

    static  SortedSet setsFilterSortedSet(SortedSet set, Predicate predicate) {
        return (set instanceof NavigableSet) ? Sets.filter((NavigableSet) set, predicate) : Sets.filterSortedIgnoreNavigable(set, predicate);
    }

    static  SortedMap mapsFilterSortedMap(SortedMap map, Predicate> predicate) {
        return (map instanceof NavigableMap) ? Maps.filterEntries((NavigableMap) map, predicate) : Maps.filterSortedIgnoreNavigable(map, predicate);
    }

    private Platform() {
    }
}




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