(There's already something else out there called jstripchart. Just to confuse you, it's a python implementation.)
Using JKstat to knock something together I came up with this:
Of course, you partly miss the point which is that this thing is merrily scrolling away.
I expect to be able to use this fairly extensively in both JKstat and SolView, but it's certainly not tied to those in any way - it's designed to be trivially simple to use in any context.
The API really is very simple. Just create a chart:
JStripChart jsc = new JStripChart();
which you can add to your application in the normal way as it's just a
JPanel, and then
will add the value
some_datato the right of the chart and move everything else along. That's it. (To get it to continuously update, create a Timer loop.)