java.lang.NullPointerException: This exception has no message.

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via Oracle Community by 807587, 1 year ago
java.lang.NullPointerException:
at javax.swing.text.View.getViewIndex(View.java:1060)
at javax.swing.text.View.getToolTipText(View.java:1031)
at javax.swing.plaf.basic.BasicTextUI.getToolTipText(BasicTextUI.java:1057)
at javax.swing.text.JTextComponent.getToolTipText(JTextComponent.java:1533)
at javax.swing.JTable.getToolTipText(JTable.java:2380)
at javax.swing.ToolTipManager$insideTimerAction.actionPerformed(ToolTipManager.java:669)
at javax.swing.Timer.fireActionPerformed(Timer.java:256)
at javax.swing.Timer$DoPostEvent.run(Timer.java:190)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:167)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:437)
at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:131)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)

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