Plugin contourmerge crashes when a way with x hundereds nodes was selected

[anonymous]

What steps will reproduce the problem?

1. select a long way/area with a lot of nodes (e.g. a huge landuse=residential), no nodes were selected, just the way
2. activate the plug-in contourmerge in the tools bar in order to select certain nodes
3. the plug-in crashes

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2013-08-26 01:35:29
Last Changed Author: Don-vip
Revision: 6196
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2013-08-26 03:06:04 +0200 (Mon, 26 Aug 2013)
Last Changed Rev: 6196

Identification: JOSM/1.5 (6196 de) Windows 7 64-Bit
Memory Usage: 280 MB / 4444 MB (77 MB allocated, but free)
Java version: 1.7.0_09, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
VM arguments: [-Xmx5000M]
Dataset consistency test: No problems found

Plugin: Create_grid_of_ways (29854)
Plugin: DirectUpload (29866)
Plugin: ElevationProfile (29854)
Plugin: FastDraw (29854)
Plugin: FixAddresses (29854)
Plugin: HouseNumberTaggingTool (29854)
Plugin: OpeningHoursEditor (29854)
Plugin: PicLayer (29854)
Plugin: RoadSigns (29854)
Plugin: SimplifyArea (29854)
Plugin: alignways (29854)
Plugin: buildings_tools (29854)
Plugin: conflation (0.1.6)
Plugin: continuosDownload (28565)
Plugin: contourmerge (1005)
Plugin: download_along (29854)
Plugin: editgpx (29854)
Plugin: geotools (29767)
Plugin: graphview (29854)
Plugin: jts (29854)
Plugin: mapdust (29854)
Plugin: measurement (29854)
Plugin: merge-overlap (29854)
Plugin: mirrored_download (29854)
Plugin: notes (v0.5)
Plugin: opendata (29854)
Plugin: openstreetbugs (29854)
Plugin: public_transport (29862)
Plugin: reltoolbox (29854)
Plugin: reverter (29854)
Plugin: routes (29854)
Plugin: tageditor (29854)
Plugin: terracer (29854)
Plugin: turnlanes (29854)
Plugin: turnrestrictions (29854)
Plugin: undelete (29854)
Plugin: utilsplugin2 (29854)
Plugin: waydownloader (29854)
Plugin: wayselector (29854)

java.lang.IllegalArgumentException: start out of range, got 0
	at org.openstreetmap.josm.plugins.contourmerge.util.Assert.checkArg(Assert.java:18)
	at org.openstreetmap.josm.plugins.contourmerge.WaySlice.<init>(WaySlice.java:39)
	at org.openstreetmap.josm.plugins.contourmerge.ContourMergeModel.getWaySliceFromSelectedNodes(ContourMergeModel.java:357)
	at org.openstreetmap.josm.plugins.contourmerge.ContourMergeModel.getDragSource(ContourMergeModel.java:369)
	at org.openstreetmap.josm.plugins.contourmerge.ContourMergeView.paint(ContourMergeView.java:355)
	at org.openstreetmap.josm.gui.MapView.paint(MapView.java:632)
	at javax.swing.JComponent.paintChildren(Unknown Source)
	at javax.swing.JComponent.paint(Unknown Source)
	at javax.swing.JComponent.paintChildren(Unknown Source)
	at javax.swing.JSplitPane.paintChildren(Unknown Source)
	at javax.swing.JComponent.paint(Unknown Source)
	at javax.swing.JComponent.paintChildren(Unknown Source)
	at javax.swing.JComponent.paint(Unknown Source)
	at javax.swing.JComponent.paintChildren(Unknown Source)
	at javax.swing.JComponent.paint(Unknown Source)
	at javax.swing.JComponent.paintChildren(Unknown Source)
	at javax.swing.JComponent.paint(Unknown Source)
	at javax.swing.JComponent.paintChildren(Unknown Source)
	at javax.swing.JComponent.paint(Unknown Source)
	at javax.swing.JLayeredPane.paint(Unknown Source)
	at javax.swing.JComponent.paintChildren(Unknown Source)
	at javax.swing.JComponent.paintToOffscreen(Unknown Source)
	at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(Unknown Source)
	at javax.swing.RepaintManager$PaintManager.paint(Unknown Source)
	at javax.swing.RepaintManager.paint(Unknown Source)
	at javax.swing.JComponent.paint(Unknown Source)
	at java.awt.GraphicsCallback$PaintCallback.run(Unknown Source)
	at sun.awt.SunGraphicsCallback.runOneComponent(Unknown Source)
	at sun.awt.SunGraphicsCallback.runComponents(Unknown Source)
	at java.awt.Container.paint(Unknown Source)
	at java.awt.Window.paint(Unknown Source)
	at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
	at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
	at javax.swing.RepaintManager.prePaintDirtyRegions(Unknown Source)
	at javax.swing.RepaintManager.access$700(Unknown Source)
	at javax.swing.RepaintManager$ProcessingRunnable.run(Unknown Source)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.awt.EventQueue.access$200(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(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.WaitDispatchSupport$2.run(Unknown Source)
	at java.awt.WaitDispatchSupport$4.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.awt.WaitDispatchSupport.enter(Unknown Source)
	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.HelpAwareOptionPane.showOptionDialog(HelpAwareOptionPane.java:301)
	at org.openstreetmap.josm.plugins.PluginHandler.confirmDeactivatingPluginAfterException(PluginHandler.java:1098)
	at org.openstreetmap.josm.plugins.PluginHandler.disablePluginAfterException(PluginHandler.java:1163)
	at org.openstreetmap.josm.tools.BugReportExceptionHandler$1.run(BugReportExceptionHandler.java:88)
	at java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.awt.EventQueue.access$200(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
...<snip>...

[Don-vip]

Reported to github: ​https://github.com/Gubaer/josm-contourmerge-plugin/issues/4

[anonymous]

select a long way/area with a lot of nodes (e.g. a huge landuse=residential), no nodes were selected, just the way

Can you add the OSM id of such a way/area for which the plugin crashes?

[anonymous]

It is difficult to reproduce as it doesn't seem to occur each time but it happened more than once in the past. I'll keep an eye on that if the problem persists in the fixed version.