Converter object to string

public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
		getCell().setText( value.toString() );
		return getCell();
	}

Exception in thread “AWT-EventQueue-0” java.lang.NullPointerException

at Tabela_Moeda_Celula_Render.getTableCellRendererComponent(Tabela_Moeda_Celula_Render.java:37)

at javax.swing.JTable.prepareRenderer(Unknown Source)

at javax.swing.plaf.basic.BasicTableUI.paintCell(Unknown Source)

at javax.swing.plaf.basic.BasicTableUI.paintCells(Unknown Source)

at javax.swing.plaf.basic.BasicTableUI.paint(Unknown Source)

at javax.swing.plaf.ComponentUI.update(Unknown Source)

at javax.swing.JComponent.paintComponent(Unknown Source)

at javax.swing.JComponent.paint(Unknown Source)

at javax.swing.JComponent.paintToOffscreen(Unknown Source)

at javax.swing.BufferStrategyPaintManager.paint(Unknown Source)

at javax.swing.RepaintManager.paint(Unknown Source)

at javax.swing.JComponent.paintForceDoubleBuffered(Unknown Source)

at javax.swing.JViewport.blitDoubleBuffered(Unknown Source)

at javax.swing.JViewport.windowBlitPaint(Unknown Source)

at javax.swing.JViewport.setViewPosition(Unknown Source)

at javax.swing.plaf.basic.BasicScrollPaneUI$Handler.hsbStateChanged(Unknown Source)

at javax.swing.plaf.basic.BasicScrollPaneUI$Handler.stateChanged(Unknown Source)

at javax.swing.DefaultBoundedRangeModel.fireStateChanged(Unknown Source)

at javax.swing.DefaultBoundedRangeModel.setRangeProperties(Unknown Source)

at javax.swing.DefaultBoundedRangeModel.setValue(Unknown Source)

at javax.swing.JScrollBar.setValue(Unknown Source)

at javax.swing.plaf.basic.BasicScrollBarUI$TrackListener.setValueFrom(Unknown Source)

at javax.swing.plaf.basic.BasicScrollBarUI$TrackListener.mouseDragged(Unknown Source)

at java.awt.Component.processMouseMotionEvent(Unknown Source)

at javax.swing.JComponent.processMouseMotionEvent(Unknown Source)

at java.awt.Component.processEvent(Unknown Source)

at java.awt.Container.processEvent(Unknown Source)

at java.awt.Component.dispatchEventImpl(Unknown Source)

at java.awt.Container.dispatchEventImpl(Unknown Source)

at java.awt.Component.dispatchEvent(Unknown Source)

at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)

at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)

at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)

at java.awt.Container.dispatchEventImpl(Unknown Source)

at java.awt.Window.dispatchEventImpl(Unknown Source)

at java.awt.Component.dispatchEvent(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)

at java.awt.EventDispatchThread.run(Unknown Source)

getCell().setText((String) value);