Streams接近ConcurrentHashMap中的最大整数

Question

我在这里有以下命令式编程代码片段：

    Map<String, Integer> nameCounts = new ConcurrentHashMap<>();
    String mostCommon = null;
    int mostCommonCount = -1;
    for (Map.Entry<String, Integer> entry : nameCounts.entrySet()) {
        if (mostCommon == null || entry.getValue() > mostCommonCount) {
            mostCommon = entry.getKey();
            mostCommonCount = entry.getValue();
        }
    }

使用某些数据执行时，nameCounts应包含以下结果：

nameCounts = {HashMap@795}  size = 6
 0 = {HashMap$Node@805} "William" -> "232818"
 1 = {HashMap$Node@806} "Dennis" -> "233249"
 2 = {HashMap$Node@807} "Maynard" -> "233205"
 3 = {HashMap$Node@808} "Vincent" -> "233288"
 4 = {HashMap$Node@809} "John" -> "234109"
 5 = {HashMap$Node@810} "Donald" -> "233331"

使用Java 8的Streams我可以使用什么功能方法来获得具有最高值的String？ （在这种情况下，它将是“约翰”）。

提前致谢！