Where are the nanoseconds from (new Timestamp(...)).getNanos()?

 I had previously read that System.currentTimeMillis() is not that
accurate, now I noticed that java doesn't really give the nanoseconds.
..
 What is it I am not getting right here?
..
 thanx
 lbrtchx
// - - - code examples
import java.io.*;
import java.util.*;
import java.sql.*;
import java.text.*;

// __
public class JFineTm00{
 private static final boolean IsSetOut = false;
// __
 public static void main(String[] aArgs){
// __
  long lTm00 = System.currentTimeMillis();
  String aFrmt = "yyyyMMddHHmmss";
  DateFormat formatter = new SimpleDateFormat(aFrmt);
  formatter.setTimeZone(TimeZone.getTimeZone("GMT"));
  String aDtF = formatter.format(new java.util.Date(lTm00));
// __
  java.util.Date uDt = new java.util.Date(lTm00);
  System.err.println("// __ new java.util.Date(lTm00): |" + uDt + "|");
// __
  System.err.println("// __ System.currentTimeMillis(): |" + lTm00 +
"|");
// __
  Timestamp TS = new Timestamp(lTm00);
  System.err.println("//__ [" + aFrmt + "]:(new
Timestamp(_)).getNanos(): |" + aDtF + ":" + TS.getNanos() + "|");
 }
}