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via Oracle Community by 807587, 1 year ago
java.lang.NullPointerException: 	at javax.swing.plaf.basic.BasicComboPopup.getPopupHeightForRowCount(	at	at javax.swing.plaf.basic.BasicComboPopup.togglePopup(	at javax.swing.plaf.basic.BasicComboPopup$InvocationMouseHandler.mousePressed(	at java.awt.Component.processMouseEvent(