Exception when loading an empty area twice.

[anonymous]

1) load a very small area without any features
2) place a ploygon whith 2 points inside the area an one outside. A msgbox like "cannot place point outside world" occurs.
3) load a new area without feature. Then one should see the following callstack.

Path: trunk
URL: http://josm.openstreetmap.de/svn/trunk
Repository Root: http://josm.openstreetmap.de/svn
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Revision: 1067
Node Kind: directory
Last Changed Author: mfloryan
Last Changed Rev: 1067
Last Changed Date: 2008-11-06 12:21:41 +0100 (Thu, 06 Nov 2008)

java.lang.RuntimeException: java.lang.reflect.InvocationTargetException

at org.openstreetmap.josm.gui.PleaseWaitRunnable.closeDialog(PleaseWaitRunnable.java:146)
at org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:95)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

Caused by: java.lang.reflect.InvocationTargetException

at java.awt.EventQueue.invokeAndWait(Unknown Source)
at org.openstreetmap.josm.gui.PleaseWaitRunnable.closeDialog(PleaseWaitRunnable.java:142)
... 4 more

Caused by: java.lang.NullPointerException

at org.openstreetmap.josm.gui.NavigatableComponent.getEastNorth(NavigatableComponent.java:95)
at org.openstreetmap.josm.actions.mapmode.DrawAction.computeHelperLine(DrawAction.java:392)
at org.openstreetmap.josm.actions.mapmode.DrawAction.selectionChanged(DrawAction.java:140)
at org.openstreetmap.josm.data.osm.DataSet.fireSelectionChanged(DataSet.java:206)
at org.openstreetmap.josm.gui.MapView.setActiveLayer(MapView.java:385)
at org.openstreetmap.josm.gui.dialogs.LayerListDialog$2.valueChanged(LayerListDialog.java:195)
at javax.swing.JList.fireSelectionValueChanged(Unknown Source)
at javax.swing.JList$ListSelectionHandler.valueChanged(Unknown Source)
at javax.swing.DefaultListSelectionModel.fireValueChanged(Unknown Source)
at javax.swing.DefaultListSelectionModel.fireValueChanged(Unknown Source)
at javax.swing.DefaultListSelectionModel.fireValueChanged(Unknown Source)
at javax.swing.DefaultListSelectionModel.changeSelection(Unknown Source)
at javax.swing.DefaultListSelectionModel.changeSelection(Unknown Source)
at javax.swing.DefaultListSelectionModel.setSelectionInterval(Unknown Source)
at javax.swing.JList.setSelectedIndex(Unknown Source)
at javax.swing.JList.setSelectedValue(Unknown Source)
at org.openstreetmap.josm.gui.dialogs.LayerListDialog.activeLayerChange(LayerListDialog.java:316)
at org.openstreetmap.josm.gui.MapView.setActiveLayer(MapView.java:393)
at org.openstreetmap.josm.gui.MapView.addLayer(MapView.java:189)
at org.openstreetmap.josm.Main.addLayer(Main.java:317)
at org.openstreetmap.josm.actions.NewAction.actionPerformed(NewAction.java:22)
at org.openstreetmap.josm.Main.editLayer(Main.java:324)
at org.openstreetmap.josm.actions.downloadtasks.DownloadOsmTask$Task.finish(DownloadOsmTask.java:49)
at org.openstreetmap.josm.gui.PleaseWaitRunnable$4.run(PleaseWaitRunnable.java:128)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.Dialog$1.run(Unknown Source)
at java.awt.Dialog$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Dialog.show(Unknown Source)
at java.awt.Component.show(Unknown Source)
at java.awt.Component.setVisible(Unknown Source)
at java.awt.Window.setVisible(Unknown Source)
at java.awt.Dialog.setVisible(Unknown Source)
at org.openstreetmap.josm.gui.PleaseWaitRunnable$3.run(PleaseWaitRunnable.java:78)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

[Hasienda]

anonymous aka jjKlaus (see #1778, a duplicate of this ticket, that most likely exists just to announce this)

[Hasienda]

1) load a very small area without any features
2) place a ploygon whith 2 points inside the area an one outside. A msgbox like "cannot place point outside world" occurs.

No, not with JOSM revision 1101 (latest to date), testet right now.

3) load a new area without feature. Then one should see the following callstack.

No, I've loaded several empty areas, both non-overlapping and overlapping to the before loaded ones. Think this was fixed somewhere on the way from JOSM revision 1067 mentioned in the report.

@reporter: please check and re-open with fresh details, if still not fixed for you