The search byte array algorithm is incorrectly implemented in FileDump.java

  private static int indexOf(final byte[] data, final byte[] pattern, final int index) {
    if (data == null || data.length == 0 || pattern == null || pattern.length == 0 ||
        index > data.length || index < 0) {
      return -1;
    }

    int j = 0;
    for (int i = index; i < data.length; i++) {
      if (pattern[j] == data[i]) {
        j++;
      } else {
        j = 0;
      }

      if (j == pattern.length) {
        return i - pattern.length + 1;
      }
    }

    return -1;
  }