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Created attachment 155283 [details] IDE log Product Version: NetBeans IDE Dev (Build 201508100002) Java: 1.8.0_60-ea; Java HotSpot(TM) 64-Bit Server VM 25.60-b23 Runtime: Java(TM) SE Runtime Environment 1.8.0_60-ea-b25 System: Windows 7 version 6.1 running on amd64; Cp1250; en_US (nb) User directory: C:\Users\cendrowiczm\AppData\Roaming\NetBeans\dev Cache directory: C:\Users\cendrowiczm\AppData\Local\NetBeans\Cache\dev Just got following error: java.lang.AssertionError: Some node should exist on row 0 and on column 0, but was null. at org.netbeans.swing.outline.ProxyTableModel.getValueAt(ProxyTableModel.java:107) at org.netbeans.swing.outline.DefaultOutlineModel.getValueAt(DefaultOutlineModel.java:299) at javax.swing.JTable.getValueAt(JTable.java:2717) at org.netbeans.swing.etable.ETable.getValueAt(ETable.java:777) at javax.swing.JTable.prepareRenderer(JTable.java:5706) at javax.swing.plaf.basic.BasicTableUI.paintCell(BasicTableUI.java:2114) at javax.swing.plaf.basic.BasicTableUI.paintCells(BasicTableUI.java:2016) at javax.swing.plaf.basic.BasicTableUI.paint(BasicTableUI.java:1812) at javax.swing.plaf.ComponentUI.update(ComponentUI.java:161) at javax.swing.JComponent.paintComponent(JComponent.java:780) at javax.swing.JComponent.paint(JComponent.java:1056) at javax.swing.JComponent.paintChildren(JComponent.java:889) at javax.swing.JComponent.paint(JComponent.java:1065) at javax.swing.JViewport.paint(JViewport.java:728) at javax.swing.JComponent.paintChildren(JComponent.java:889) at javax.swing.JComponent.paint(JComponent.java:1065) at javax.swing.JComponent.paintChildren(JComponent.java:889) at javax.swing.JComponent.paint(JComponent.java:1065) at javax.swing.JComponent.paintChildren(JComponent.java:889) at javax.swing.JComponent.paint(JComponent.java:1065) at javax.swing.JComponent.paintChildren(JComponent.java:889) at javax.swing.JComponent.paint(JComponent.java:1065) at javax.swing.JComponent.paintChildren(JComponent.java:889) at javax.swing.JComponent.paint(JComponent.java:1065) at javax.swing.JComponent.paintChildren(JComponent.java:889) at javax.swing.JComponent.paint(JComponent.java:1065) at org.netbeans.swing.tabcontrol.TabbedContainer.paint(TabbedContainer.java:994) at javax.swing.JComponent.paintChildren(JComponent.java:889) at javax.swing.JComponent.paint(JComponent.java:1065) at javax.swing.JComponent.paintChildren(JComponent.java:889) at javax.swing.JComponent.paint(JComponent.java:1065) at javax.swing.JComponent.paintChildren(JComponent.java:889) at javax.swing.JComponent.paint(JComponent.java:1065) at javax.swing.JComponent.paintChildren(JComponent.java:889) at javax.swing.JComponent.paint(JComponent.java:1065) at javax.swing.JLayeredPane.paint(JLayeredPane.java:586) at javax.swing.JComponent.paintChildren(JComponent.java:889) at javax.swing.JComponent.paint(JComponent.java:1065) at javax.swing.JComponent.paintToOffscreen(JComponent.java:5210) at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1579) at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1502) at javax.swing.RepaintManager.paint(RepaintManager.java:1272) at javax.swing.JComponent._paintImmediately(JComponent.java:5158) at javax.swing.JComponent.paintImmediately(JComponent.java:4969) at javax.swing.RepaintManager$4.run(RepaintManager.java:831) at javax.swing.RepaintManager$4.run(RepaintManager.java:814) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:814) at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:789) at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:738) at javax.swing.RepaintManager.access$1200(RepaintManager.java:64) at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1732) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756) at java.awt.EventQueue.access$500(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:709) at java.awt.EventQueue$3.run(EventQueue.java:703) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:726) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159) [catch] at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:82) --Details-- - I was playing around this test case --> http://services.netbeans.org/synergy/client/app/#/case/1127/suite/1655/v/1 - I had two watches - I tested with filters for 3-4 minutes - Just wanted to finish debugger session - My two watches disappeared from the Watches view - When switching somewhere else and going back to the Watches view my watches were back
In issue #176528 this assert was added to prevent from NPE. But it was obviously not a real fix.