Method memcmpMaybeNull

src/Bytes.java:608–618

memcmp(3) in Java for possibly null arrays, hooray. @param a First possibly null byte array to compare. @param b Second possibly null byte array to compare. @return 0 if the two arrays are identical (or both are null), otherwise the difference between the firs

(final byte[] a, final byte[] b)

   * null} byte array is considered shorter than an empty byte array).
   */
  public static int memcmpMaybeNull(final byte[] a, final byte[] b) {
    if (a == null) {
      if (b == null) {
        return 0;
      }
      return -1;
    } else if (b == null) {
      return 1;
    }
    return memcmp(a, b);
  }

  /** A convenient map keyed with a byte array.  */
  public static final class ByteMap<V> extends TreeMap<byte[], V>