如何通过拆分包含重复名称的映射<String，List<Object>>的键来创建新映射

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class Main {
    public static void main(String[] args) {
        Map<String, List<Object>> originalMap = new HashMap<>();
        originalMap.put("name1[0]", List.of("value1"));
        originalMap.put("name2[0]", List.of("value2"));
        originalMap.put("name1[1]", List.of("value3"));
        originalMap.put("name2[1]", List.of("value4"));

        Map<String, List<Object>> newMap = new HashMap<>();

        for (Map.Entry<String, List<Object>> entry : originalMap.entrySet()) {
            String key = entry.getKey();
            List<Object> value = entry.getValue();

            String[] parts = key.split("\\[");
            String name = parts[0];

            if (newMap.containsKey(name)) {
                newMap.get(name).addAll(value);
            } else {
                newMap.put(name, new ArrayList<>(value));
            }
        }

        System.out.println(newMap);
    }
}