id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc 16389,ArrayIndexOutOfBoundsException: node has no children,naoliv,team,"I don't know exactly what caused this (I guess that I did a `Ctrl+Z` to undo something): {{{ 2018-06-14 08:36:43.843 GRAVE: Handled by bug report queue: java.lang.ArrayIndexOutOfBoundsException: node has no children java.lang.ArrayIndexOutOfBoundsException: node has no children at java.desktop/javax.swing.tree.DefaultMutableTreeNode.getChildAt(DefaultMutableTreeNode.java:244) at org.openstreetmap.josm.gui.dialogs.CommandStackDialog.swapNode(CommandStackDialog.java:395) at org.openstreetmap.josm.gui.dialogs.CommandStackDialog.commandUndone(CommandStackDialog.java:382) at org.openstreetmap.josm.data.UndoRedoHandler$CommandUndoneEvent.fire(UndoRedoHandler.java:187) at java.base/java.lang.Iterable.forEach(Iterable.java:75) at org.openstreetmap.josm.data.UndoRedoHandler.fireEvent(UndoRedoHandler.java:338) at org.openstreetmap.josm.data.UndoRedoHandler.undo(UndoRedoHandler.java:289) at org.openstreetmap.josm.data.UndoRedoHandler.undo(UndoRedoHandler.java:270) at org.openstreetmap.josm.actions.UndoAction.actionPerformed(UndoAction.java:39) at java.desktop/javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1810) at java.desktop/javax.swing.JComponent.processKeyBinding(JComponent.java:2900) at java.desktop/javax.swing.KeyboardManager.fireBinding(KeyboardManager.java:311) at java.desktop/javax.swing.KeyboardManager.fireKeyboardAction(KeyboardManager.java:266) at java.desktop/javax.swing.JComponent.processKeyBindingsForAllComponents(JComponent.java:2993) at java.desktop/javax.swing.JComponent.processKeyBindings(JComponent.java:2985) at java.desktop/javax.swing.JComponent.processKeyEvent(JComponent.java:2862) at java.desktop/java.awt.Component.processEvent(Component.java:6366) at java.desktop/java.awt.Container.processEvent(Container.java:2261) at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:4966) at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2319) at java.desktop/java.awt.Component.dispatchEvent(Component.java:4798) at java.desktop/java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1950) at java.desktop/java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:871) at java.desktop/java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1140) at java.desktop/java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:1010) at java.desktop/java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:836) at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:4847) at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2319) at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2772) at java.desktop/java.awt.Component.dispatchEvent(Component.java:4798) at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:772) at java.desktop/java.awt.EventQueue.access$600(EventQueue.java:97) at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721) at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:97) at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745) at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:743) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87) at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:742) at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203) at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124) at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113) at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109) at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90) }}} JOSM: {{{ Relative:URL: ^/trunk Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b Last:Changed Date: 2018-06-13 23:37:59 +0200 (Wed, 13 Jun 2018) Revision:13929 Build-Date:2018-06-13 21:48:50 URL:https://josm.openstreetmap.de/svn/trunk Identification: JOSM/1.5 (13929 pt_BR) Linux Debian GNU/Linux testing (buster) Memory Usage: 516 MB / 7168 MB (189 MB allocated, but free) Java version: 10.0.1+10-Debian-4, Oracle Corporation, OpenJDK 64-Bit Server VM Screen: :0.0 1600x900, :0.1 1280x1024 Maximum Screen Size: 1600x1024 Java package: openjdk-10-jre:amd64-10.0.1+10-4 Java ATK Wrapper package: libatk-wrapper-java:all-0.33.3-21 VM arguments: [--add-modules=java.activation,java.se.ee, -Dawt.useSystemAAFontSettings=on] Dataset consistency test: No problems found Plugins: + ImportImagePlugin (34219) + OpeningHoursEditor (34095) + PicLayer (34170) + SimplifyArea (34109) + apache-commons (34109) + buildings_tools (34212) + download_along (34081) + editgpx (34109) + ejml (34126) + geojson (80) + geotools (34125) + jts (34038) + log4j (34038) + measurement (34109) + opendata (34196) + pbf (34109) + poly (34098) + reverter (34271) + scripting (30785) + tageditor (34109) + todo (30304) + turnlanes-tagging (263) + turnrestrictions (34129) + undelete (34274) + utilsplugin2 (34286) + wikipedia (v1.0.1) }}}",defect,closed,normal,18.06,Core,,fixed,undo stack tree,