在Java if语句中一起添加变量

Question

我有一个变量HEADER_DIFF。它使用：

设置

public static final long HEADER_DIFF = 76;

然后我接到了这个电话：

  private static byte[] copyToByteArray(final InputStream is,
          final int recordLength, final boolean enforceLength)
      throws IOException {

    BoundedInputStream bis = new BoundedInputStream(is, recordLength);
    byte[] rawContents = IOUtils.toByteArray(bis);
    if (!(rawContents.length == recordLength + HEADER_DIFF
          || rawContents.length == recordLength)) {
      LOG.error("Read " + rawContents.length + " bytes but expected "
      + recordLength + " bytes. Continuing...");
    }
    return rawContents;
  }

问题是，当我们执行if语句时，recordLength没有添加到HEADER_DIFF。实际上，如果我在LOG决定打印recordLength + HEADER_DIFF，我只需获得recordLength。

有关如何使这项工作的想法吗？