Kann jemand mit dieser NPE was anfangen:
Code:
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at org.jfree.chart.renderer.xy.StandardXYItemRenderer.drawItem(StandardXYItemRenderer.java:813)
at org.jfree.chart.plot.XYPlot.render(XYPlot.java:3104)
at org.jfree.chart.plot.XYPlot.draw(XYPlot.java:2680)
at org.jfree.chart.JFreeChart.draw(JFreeChart.java:1214)
at org.jfree.chart.ChartPanel.paintComponent(ChartPanel.java:1270)
at javax.swing.JComponent.paint(JComponent.java:1022)
at javax.swing.JComponent.paintToOffscreen(JComponent.java:5104)
at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1386)
at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1317)
at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:301)
at javax.swing.RepaintManager.paint(RepaintManager.java:1132)
