code: public static byte convertToByte (@Nullable final Object aSrcValue, final byte nDefault)
    {
      final Byte aValue = convert (aSrcValue, Byte.class, null);
      return aValue == null ? nDefault : aValue.byteValue ();
    }
docs: Convert the passed source value to byte
  
  @param aSrcValue
  The source value. May be <code>null</code>.
  @param nDefault
  The default value to be returned if an error occurs during type
  conversion.
  @return The converted value.
  @throws RuntimeException
  If the converter itself throws an exception
  @see TypeConverterProviderBestMatch