JOSM expected to find primitive [node 18963] in dataset but it is not there.

[jBeata]

After zooming in/out and selecting an Openstreetbug from the bugs list, the following error appears on the terminal window:

Repository Root: ​http://josm.openstreetmap.de/svn
Build-Date: 2011-02-28 02:31:27
Last Changed Author: bastiK
Revision: 3936
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: ​http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2011-02-27 13:33:37 +0100 (Sun, 27 Feb 2011)
Last Changed Rev: 3936
GET ​http://api.openstreetmap.org/api/capabilities... OK
Communications with ​http://api.openstreetmap.org/api established using protocol version 0.6.
loading plugin 'openstreetbugs' (version 25199)
loading plugin 'mapdust' (version 25312)
Open file: /home/bjancso/Desktop/file1.osm (6629928 bytes)
Keystroke shift alt pressed A is already assigned to org.openstreetmap.josm.gui.dialogs.ToggleDialog$ToggleDialogAction@5dbb6a69, will be overridden by org.openstreetmap.josm.gui.dialogs.ToggleDialog$ToggleDialogAction@75157f77
Silent shortcut conflict: 'view:openstreetbugs' moved by 'system:download_primitive' to 'Ctrl+Alt+O'.

JOSM expected to find primitive [node 18963] in dataset but it is not there. Please report this at ​http://josm.openstreetmap.de . This is not a critical error, it should be safe to continue in your work.
java.lang.Exception

at org.openstreetmap.josm.data.osm.DataSet.getPrimitiveByIdChecked(DataSet.java:706)
at org.openstreetmap.josm.data.osm.DataSet.addSelected(DataSet.java:545)
at org.openstreetmap.josm.data.osm.DataSet.setSelected(DataSet.java:487)
at org.openstreetmap.josm.data.osm.DataSet.setSelected(DataSet.java:507)
at org.openstreetmap.josm.plugins.osb.gui.OsbDialog.valueChanged(OsbDialog.java:294)
at javax.swing.JList.fireSelectionValueChanged(JList.java:1782)
at javax.swing.JList$ListSelectionHandler.valueChanged(JList.java:1796)
at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:184)
at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:164)
at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:211)
at javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:405)
at javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:415)
at javax.swing.DefaultListSelectionModel.setSelectionInterval(DefaultListSelectionModel.java:459)
at javax.swing.JList.setSelectionInterval(JList.java:2052)
at javax.swing.plaf.basic.BasicListUI$Handler.adjustSelection(BasicListUI.java:2729)
at javax.swing.plaf.basic.BasicListUI$Handler.mousePressed(BasicListUI.java:2685)
at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:280)
at java.awt.AWTEventMulticaster.mousePressed(AWTEventMulticaster.java:279)
at java.awt.Component.processMouseEvent(Component.java:6105)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
at java.awt.Component.processEvent(Component.java:5873)
at java.awt.Container.processEvent(Container.java:2105)
at java.awt.Component.dispatchEventImpl(Component.java:4469)
at java.awt.Container.dispatchEventImpl(Container.java:2163)
at java.awt.Component.dispatchEvent(Component.java:4295)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4461)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4122)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4055)
at java.awt.Container.dispatchEventImpl(Container.java:2149)
at java.awt.Window.dispatchEventImpl(Window.java:2478)
at java.awt.Component.dispatchEvent(Component.java:4295)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:604)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:185)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:177)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:138)

[hampelratte]

This probably happens during the update process, when the list content is not yet updated, so that it displays an inconsistent state. In this case it may happen, that the lists shows a bug/node, which does not exist in the new dataset, because it left the bounds of the visible rectangle. I have added some code, which disables the list during the update process. Hopefully this fixes the problem.

[jBeata]

This happens, when you move the map, and then select an element from the list of OpenStreetBugs. Maybe the list contains elements which are not visible anymore on the map.

[jBeata]

This issue cannot be reproduced anymore.