如何将计算CRC16的有效JavaScript代码转换为Java语言

function calculateCRC16(data) {
  var crc = 0xFFFF;
  for (var i = 0; i < data.length; i++) {
    crc = (crc ^ (data[i] << 8)) & 0xFFFF;
    for (var j = 0; j < 8; j++) {
      crc = ((crc & 0x8000) !== 0) ? ((crc << 1) ^ 0x1021) : (crc << 1);
      crc = crc & 0xFFFF;
    }
  }
  return crc;
}

public class CRC16 {
  public static int calculateCRC16(byte[] data) {
    int crc = 0xFFFF;
    for (int i = 0; i < data.length; i++) {
      crc = (crc ^ (data[i] << 8)) & 0xFFFF;
      for (int j = 0; j < 8; j++) {
        crc = ((crc & 0x8000) != 0) ? ((crc << 1) ^ 0x1021) : (crc << 1);
        crc = crc & 0xFFFF;
      }
    }
    return crc;
  }
}