Minimum Length of String After Deleting Similar Ends LeetCode solution in Java

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class Solution {
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  public int minimumLength(String s) {
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    int length = s.length();
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    char[] chars = s.toCharArray();
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    for (int left = 0, right = chars.length - 1; left < right; ) {
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      if (chars[left] == chars[right]) {
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        char c = chars[left];
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        while (left < right && chars[left] == c) {
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          left++;
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          length--;
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        }
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        while (right >= left && chars[right] == c) {
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          right--;
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          length--;
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        }
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      } else {
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        break;
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      }
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    }
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    return length;
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  }
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}