/*
 * Hello Minecraft! Launcher
 * Copyright (C) 2020  huangyuhui <huanghongxun2008@126.com> and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
package org.jackhuang.hmcl.util.gson;

import java.util.HashMap;
import java.util.Map;

/**
 * To resolve JsonParseException: duplicate key: null
 * By skipping inserting data with key null
 * @param <K>
 * @param <V>
 */
public class JsonMap<K, V> extends HashMap<K, V> {
    public JsonMap(int initialCapacity, float loadFactor) {
        super(initialCapacity, loadFactor);
    }

    public JsonMap(int initialCapacity) {
        super(initialCapacity);
    }

    public JsonMap() {
        super();
    }

    public JsonMap(Map<? extends K, ? extends V> m) {
        super(m);
    }

    @Override
    public V put(K key, V value) {
        if (key == null) return null;
        return super.put(key, value);
    }
}
