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

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via Coderanch by sharath kv, 1 year ago
This exception has no message.
at undefined.PaneDemo4.populate_cards(
at undefined.get_cards_details.Employee(
at undefined.get_cards_details.(
at javax.swing.JComboBox.fireActionEvent(
at javax.swing.JComboBox.setSelectedItem(

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