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Build: NetBeans IDE 7.3.1 (Build 201306052037) VM: Java HotSpot(TM) 64-Bit Server VM, 23.25-b01, Java(TM) SE Runtime Environment, 1.7.0_25-b15 OS: Linux User Comments: mjr_1974: I don't know when the exception was thrown... Stacktrace: java.lang.NullPointerException at javax.swing.CellRendererPane.addImpl(CellRendererPane.java:102) at java.awt.Container.add(Container.java:410) at javax.swing.plaf.basic.BasicListUI.updateLayoutState(BasicListUI.java:1362) at javax.swing.plaf.basic.BasicListUI.maybeUpdateLayoutState(BasicListUI.java:1311) at javax.swing.plaf.basic.BasicListUI.getPreferredSize(BasicListUI.java:578) at javax.swing.JComponent.getPreferredSize(JComponent.java:1660)
Created attachment 136360 [details] stacktrace
*** This bug has been marked as a duplicate of bug 219864 ***