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I'd also like to see optional logging. My chart-generating servlet log is now filled with charting info messages. The problem is I occasionally generate some info-level log messages I would like to see. Is there a way to turn off or change the logging levels for jfreechart globally, short of removin...

I don't know if this is related to your issue, but I also had problems upgrading to 0.9.17. I don't think it was the same exception as yours but some exception was being thrown whenever I tried to generate a chart. To correct the problem, I had to upgrade jcommon from 0.9.1 to 0.9.2. The link for jc...

I'm having a problem similar to that described in this post http://www.jfree.org/phpBB2/viewtopic.php?t=7360 However, instead of forcing an extra tick mark to appear at my maximum dataset value, I'd willing to use the (hopefully) easier solution of adding one tick unit to the axis upper bound. I hav...