issue using jfree chart with gnu classpath 0.98

Hi GNU classpath team,

I'm facing some problem using jfree chart with GNU classpath 0.98 and 
JamVM. I'm using a redhat based linux which is only console based linux 
and doesn't support desktop and graphics. while running following demo 
in my machine with JamVM I get NullPointerException but it is working 
fine with JDK 1.5 with update 14. While generating chart with jfree 
chart it is also giving the same error.

import java.awt.Font;
public class FontDemo{
       public static void main(String args[]){
               Font f = new Font("SansSerif", Font.BOLD, 18);
               System.out.println(f.getName());
       }
}

OUTPUT:
/bin/jamvm/bin/jamvm -cp . FontDemo      Exception in thread "main" 
java.lang.NullPointerException
  at java.awt.Font.getName(Font.java:427)
  at FontDemo.main(FontDemo.java:5)

can you shed some more light on this issue ?

-- 
Thanks and Regards,

Dhaval Yoganandi,
Jr. Software Engineer,
Elitecore Technologies Ltd.
Cyberoam.