java.lang.NullPointerException
	at org.openide.explorer.propertysheet.RendererFactory$StringRenderer.setText(RendererFactory.java:508)
	at org.openide.explorer.propertysheet.RendererFactory$StringRenderer.reset(RendererFactory.java:675)
	at org.openide.explorer.propertysheet.RendererFactory$StringRenderer.connect(RendererFactory.java:639)
	at org.openide.explorer.propertysheet.RendererFactory.prepareString(RendererFactory.java:266)
	at org.openide.explorer.propertysheet.RendererFactory.getRenderer(RendererFactory.java:122)
	at org.openide.explorer.propertysheet.SheetCellRenderer.getTableCellRendererComponent(SheetCellRenderer.java:107)
	at org.openide.explorer.propertysheet.BaseTable.prepareRenderer(BaseTable.java:552)
	at org.openide.explorer.propertysheet.SheetTable.prepareRenderer(SheetTable.java:409)
	at javax.swing.plaf.basic.BasicTableUI.paintCell(BasicTableUI.java:1149)
	at javax.swing.plaf.basic.BasicTableUI.paintCells(BasicTableUI.java:1051)
	at javax.swing.plaf.basic.BasicTableUI.paint(BasicTableUI.java:974)
	at javax.swing.plaf.ComponentUI.update(ComponentUI.java:142)
	at javax.swing.JComponent.paintComponent(JComponent.java:541)
	at org.openide.explorer.propertysheet.SheetTable.paintComponent(SheetTable.java:324)
	at javax.swing.JComponent.paint(JComponent.java:808)
	at org.openide.explorer.propertysheet.BaseTable.paint(BaseTable.java:617)
	at javax.swing.JComponent.paintChildren(JComponent.java:647)
	at javax.swing.JComponent.paint(JComponent.java:817)
	at javax.swing.JViewport.paint(JViewport.java:722)
	at javax.swing.JComponent.paintChildren(JComponent.java:647)
	at javax.swing.JComponent.paint(JComponent.java:817)
	at javax.swing.JComponent.paintChildren(JComponent.java:647)
	at javax.swing.JComponent.paint(JComponent.java:817)
	at javax.swing.JComponent.paintChildren(JComponent.java:647)
	at javax.swing.JSplitPane.paintChildren(JSplitPane.java:1021)
	at javax.swing.JComponent.paint(JComponent.java:817)
	at javax.swing.JComponent.paintChildren(JComponent.java:647)
	at javax.swing.JComponent.paint(JComponent.java:817)
	at javax.swing.JComponent.paintWithOffscreenBuffer(JComponent.java:4787)
	at javax.swing.JComponent.paintDoubleBuffered(JComponent.java:4740)
	at javax.swing.JComponent._paintImmediately(JComponent.java:4685)
	at javax.swing.JComponent.paintImmediately(JComponent.java:4488)
	at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:410)
[catch] at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:117)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:454)
	at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)