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      replaced with your own identifying information. (Don't include
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      file or class name and description of purpose be included on the
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 * requirement that existing callers already fulfill).
 *
 * Disclaimer: Part of the reason that callers are so well adapted to `Function<A, B>` may be that
 * that is how the signature looked even prior to this comment! So naturally any change can break
 * existing users, but it can't *fix* existing users because any users who needed
 * `Function<@Nullable A, @Nullable B>` already had to find a workaround. Still, there is a *ton* of

            while ((line = reader.readLine()) != null) {
                // Remove comments
                final String replacedLine = line.replaceAll("#.*$", StringUtil.EMPTY).trim();

                // Skip empty lines or comment lines
                if (replacedLine.length() == 0) {
                    if (updater != null) {
                        updater.write(line);
                    }
                    continue;
                }

     * to be the case). Thus, this test is more of a regression test.
     *
     * Rough instructions to regenerate the test outputs and verify correctness:
     * - Temporarily change this test:
     * --- Comment out assertEquals.
     * --- System.out.println(input + " " + simplifyPath(input));
     * --- fail(). (If the test were to pass, its output would be hidden.)
     * - Run the test.

    long unused2;
    long unused3;

    PaddedLock() {
      super(false);
    }
  }

  private static final class PaddedSemaphore extends Semaphore {
    // See PaddedReentrantLock comment
    long unused1;
    long unused2;
    long unused3;

    PaddedSemaphore(int permits) {
      super(permits, false);
    }
  }

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