java.lang.NullPointerException

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    • java.lang.NullPointerException at Main.paint(Main.java:153) at sun.awt.RepaintArea.paint(RepaintArea.java:180) at sun.awt.windows.WComponentPeer.handleEvent(WComponentPeer.java:260) at java.awt.Component.dispatchEventImpl(Component.java:3586) at java.awt.Container.dispatchEventImpl(Container.java:1437) at java.awt.Component.dispatchEvent(Component.java:3367) at java.awt.EventQueue.dispatchEvent(EventQueue.java:445) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:190) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:144) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:130) at java.awt.EventDispatchThread.run(EventDispatchThread.java:98)
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