byte[] fileBytes = Files.readAllBytes(shaFile.toPath());
        String expectedSha = new String(fileBytes, StandardCharsets.UTF_8).trim();

        String sha = getSha1(jar);

        if (expectedSha.equals(sha) == false) {
            final String exceptionMessage = String.format(
                Locale.ROOT,
                "SHA has changed! Expected %s for %s but got %s."

  }

  /**
   * Returns the {@code char} value whose big-endian representation is stored in the first 2 bytes
   * of {@code bytes}; equivalent to {@code ByteBuffer.wrap(bytes).getChar()}. For example, the
   * input byte array {@code {0x54, 0x32}} would yield the {@code char} value {@code '\\u5432'}.
   *
   * <p>Arguably, it's preferable to use {@link java.nio.ByteBuffer}; that library exposes much more