Finaly I could find the java implmentation for sparklines following are the two links
This one requires java1.5
http://www.representqueens.com/spark/
For java 1.4 and lower check this out
http://saucemaster.info/2005/08/09/jsparkline-001/#comments
For the above JSparkline I have implemented the antialiasing feature and also the slices for the pie chart.
Before antialising 
and after 
Sliced Pie 
with border 
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