Most Common Word LeetCode solution in Java

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class Solution {
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  public String mostCommonWord(String paragraph, String[] banned) {
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    HashMap<String, Integer> hm = new HashMap<>();
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    String[] words = paragraph.replaceAll("[!?',;.]", " ").toLowerCase().split("\\s+");
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    for (int i = 0; i < words.length; i++) {
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      if (hm.containsKey(words[i])) hm.replace(words[i], hm.get(words[i]), hm.get(words[i]) + 1);
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      else hm.put(words[i], 1);
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    }
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    for (int i = 0; i < banned.length; i++) if (hm.containsKey(banned[i])) hm.remove(banned[i]);
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    return Collections.max(hm.entrySet(), Map.Entry.comparingByValue()).getKey();
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  }
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}