private static void longToIntArray(long lValue,
                                      int[] buffer,
                                      int nStartIndex)
    {
        buffer[nStartIndex]     = (int) (lValue >>> 32);
        buffer[nStartIndex + 1] = (int) lValue;
    }
converts a long to integers which are put into a given array
@param lValue the 64bit integer to convert
@param buffer the target buffer
@param nStartIndex where to place the bytes in the buffer
xmppserver/src/main/java/org/jivesoftware/util/Blowfish.java