NPE in ChartPanel.displayPopupMenu

[JGoodwin]

This isn't very important but FWIW:

I got an NPE in ChartPanel.displayPopupMenu line 3018, JFreeChart 1.0.13.
The code there was:

Plot plot = this.chart.getPlot();

I got this because I dropped the mouse (literally: I'm wearing a wrist brace
and it's cramping my style) and must have clicked somehow during the
initialization of the chart.

It looks as if this.chart == null. Maybe there should be a check for
that and if true, then return without doing anything.

/jim

[david.gilbert]

Good catch. I committed a quick fix to Subversion for inclusion in the next release (1.0.14). But I need to think some more about how the popup menu should behave if the chart or plot is null.