java.awt.IllegalComponentStateException

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    • java.awt.IllegalComponentStateException: component must be showing on the screen to determine its location" Here is my stack dump: at java.awt.Component.getLocationOnScreen_NoTreeLock(Component.java:1487) at java.awt.Component.getLocationOnScreen(Component.java:1461) at javax.swing.Autoscroller.mouseDragged(Autoscroller.java:79) at javax.swing.JComponent.processMouseMotionEvent(JComponent.java:2759) at java.awt.Component.processEvent(Component.java:4822) at java.awt.Container.processEvent(Container.java:1525) at java.awt.Component.dispatchEventImpl(Component.java:3526) at java.awt.Container.dispatchEventImpl(Container.java:1582) at java.awt.Component.dispatchEvent(Component.java:3367) at javax.swing.plaf.basic.BasicTableUI$MouseInputHandler.repostEvent(BasicTableUI.java:475) at javax.swing.plaf.basic.BasicTableUI$MouseInputHandler.mouseDragged(BasicTableUI.java:554) at java.awt.AWTEventMulticaster.mouseDragged(AWTEventMulticaster.java:258) at java.awt.AWTEventMulticaster.mouseDragged(AWTEventMulticaster.java:257) at java.awt.AWTEventMulticaster.mouseDragged(AWTEventMulticaster.java:257) at java.awt.Component.processMouseMotionEvent(Component.java:5069) at javax.swing.JComponent.processMouseMotionEvent(JComponent.java:2763) at java.awt.Component.processEvent(Component.java:4822) at java.awt.Container.processEvent(Container.java:1525) at java.awt.Component.dispatchEventImpl(Component.java:3526) at java.awt.Container.dispatchEventImpl(Container.java:1582) at java.awt.Component.dispatchEvent(Component.java:3367) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3359) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3091) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3004) at java.awt.Container.dispatchEventImpl(Container.java:1568) at java.awt.Window.dispatchEventImpl(Window.java:1581) at java.awt.Component.dispatchEvent(Component.java:3367) at java.awt.EventQueue.dispatchEvent(EventQueue.java:445) at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:191) 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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