Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at org.joshy.sketch.canvas.SketchCanvas.recalcMaxExtent(SketchCanvas.java:327)
at org.joshy.sketch.canvas.SketchCanvas.draw(SketchCanvas.java:139)
at org.joshy.gfx.node.control.ScrollPane$1.draw(ScrollPane.java:71)
at org.joshy.gfx.node.control.ScrollPane.draw(ScrollPane.java:297)
at org.joshy.gfx.node.layout.Panel.draw(Panel.java:80)
at org.joshy.gfx.node.layout.Panel.draw(Panel.java:80)
at org.joshy.gfx.node.layout.Panel.draw(Panel.java:80)
at org.joshy.gfx.stage.swing.SwingStage$2.draw(SwingStage.java:260)
at org.joshy.gfx.stage.swing.SwingStage$1.draw(SwingStage.java:217)
at org.joshy.gfx.stage.swing.SwingStage$SceneComponent.doGFXDrawing(SwingStage.java:515)
at org.joshy.gfx.stage.swing.SwingStage$SceneComponent.paintComponent(SwingStage.java:487)
at javax.swing.JComponent.paint(Unknown Source)
at javax.swing.JComponent.paintChildren(Unknown Source)
at javax.swing.JComponent.paint(Unknown Source)
at javax.swing.JComponent.paintToOffscreen(Unknown Source)
at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(Unknown Source)
at javax.swing.RepaintManager$PaintManager.paint(Unknown Source)
at javax.swing.RepaintManager.paint(Unknown Source)
at javax.swing.JComponent._paintImmediately(Unknown Source)
at javax.swing.JComponent.paintImmediately(Unknown Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.seqPaintDirtyRegions(Unknown Source)
at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)