java.lang.NullPointerException

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    • java.lang.NullPointerException at javax.swing.plaf.basic.BasicProgressBarUI.getGenericBox(BasicProgressBarUI.java:477) at javax.swing.plaf.basic.BasicProgressBarUI.getBox(BasicProgressBarUI.java:378) at javax.swing.plaf.basic.BasicProgressBarUI.paintIndeterminate(BasicProgressBarUI.java:582) at javax.swing.plaf.basic.BasicProgressBarUI.paint(BasicProgressBarUI.java:333) at javax.swing.plaf.ComponentUI.update(ComponentUI.java:142) at javax.swing.JComponent.paintComponent(JComponent.java:541) at javax.swing.JComponent.paint(JComponent.java:808) at javax.swing.JComponent.paintWithOffscreenBuffer(JComponent.java:4771) at javax.swing.JComponent.paintDoubleBuffered(JComponent.java:4724) at javax.swing.JComponent._paintImmediately(JComponent.java:4668) at javax.swing.JComponent.paintImmediately(JComponent.java:4477) at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:410) 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:448) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:197) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:144) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136) at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)

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