public static void putLongLE(byte[] arr,long off,long val){
  if (UNALIGNED)   UNSAFE.putLong(arr,off,Long.reverseBytes(val));
 else   putLongByByte(arr,off,val,false);
}

public static void putLongLE ( byte [ ] arr , long off , long val ) { if ( UNALIGNED ) UNSAFE . putLong ( arr , off , Long . reverseBytes ( val ) ) ; else putLongByByte ( arr , off , val , false ) ; }
stores long value into byte array assuming that value should be stored in little - endian byte order and native byte order is big - endian . alignment aware .
