looking at http://www.jfree.org/jfreechart/javadoc/ ,

org.jfree.chart.encoders.EncoderUtil.writeBufferedImage does not look 
thread-safe.
try checking sun.awt.image.codec.JPEGImageEncoderImpl.encode API.

Try increasing the latency by re-requesting the servlet every 30 secs/ 1 min 
and see if that works fine or not.




Kumar Pandey wrote:



Sorry I forgot to include couple of more stats

Tomcat is running on linux FC4
Client browser is IE 6.0

First line of the dump is
"http-0.0.0.0-80-Processor99" daemon prio=1
tid=0x8b09b4b8 nid=0x46ec runnable
[0x84be7000..0x84be91c0]

Thx



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