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

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via Coderanch by djay djay, 1 year ago
This exception has no message.
via Oracle Community by 807587, 1 year ago
This exception has no message.
java.lang.NullPointerException:
at javax.swing.JComboBox$DefaultKeySelectionManager.selectionForKey(JComboBox.java:1207)
at javax.swing.JComboBox.selectWithKeyChar(JComboBox.java:1003)
at javax.swing.plaf.basic.BasicComboBoxUI$KeyHandler.keyPressed(BasicComboBoxUI.java:425)
at java.awt.AWTEventMulticaster.keyPressed(AWTEventMulticaster.java:204)
at java.awt.Component.processKeyEvent(Component.java:3761)
at javax.swing.JComponent.processKeyEvent(JComponent.java:2073)
at java.awt.Component.processEvent(Component.java:3637)
at java.awt.Container.processEvent(Container.java:1202)
at java.awt.Component.dispatchEventImpl(Component.java:2678)
at java.awt.Container.dispatchEventImpl(Container.java:1251)
at java.awt.Component.dispatchEvent(Component.java:2581)
at java.awt.LightweightDispatcher.processKeyEvent(Container.java:2200)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:2180)
at java.awt.Container.dispatchEventImpl(Container.java:1238)
at java.awt.Window.dispatchEventImpl(Window.java:964)
at java.awt.Component.dispatchEvent(Component.java:2581)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:434)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:234)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:141)
at java.awt.Dialog.show(Dialog.java:394)

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