id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
10511	[Patch] Joining complex areas produces exception	Stereo	team	"What steps will reproduce the problem?
 1. Open http://openstreetmap.lu/complexareas.osm . In this case, the polygons were created by the areaselector plugin.
 2. Select the three weird polygons
 3. Join them with Tools > Join Overlapping Areas

What is the expected result?

Three weird polygons become one weird polygon

What happens instead?

The exception below, and the ways are mangled.

Please provide any additional information below. Attach a screenshot if
possible.

{{{
Revision: 7480
Repository Root: http://josm.openstreetmap.de/svn
Last Changed Author: Don-vip
Last Changed Date: 2014-08-31 23:51:24 +0200 (Sun, 31 Aug 2014)
Build-Date: 2014-08-31 21:55:55
URL: http://josm.openstreetmap.de/svn/trunk
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last Changed Rev: 7480

Identification: JOSM/1.5 (7480 en_GB) Mac OS X 10.9.4
Memory Usage: 898 MB / 3641 MB (461 MB allocated, but free)
Java version: 1.8.0_20, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
VM arguments: [-Djava.library.path=/Applications/JOSM.app/Contents/MacOS, -DLibraryDirectory=/Users/stereo/Library, -DDocumentsDirectory=/Users/stereo/Documents, -DApplicationSupportDirectory=/Users/stereo/Library/Application Support, -DCachesDirectory=/Users/stereo/Library/Caches, -DSandboxEnabled=false, -Dapple.laf.useScreenMenuBar=true, -Dcom.apple.macos.use-file-dialog-packages=true, -Dcom.apple.macos.useScreenMenuBar=true, -Dcom.apple.mrj.application.apple.menu.about.name=JOSM, -Dcom.apple.hwaccel=false]
Dataset consistency test: No problems found

Plugins:
- AddrInterpolation (30416)
- CommandLine (30523)
- DirectDownload (30416)
- DirectUpload (30416)
- FixAddresses (30416)
- HouseNumberTaggingTool (30416)
- OpeningHoursEditor (30609)
- PicLayer (30436)
- RoadSigns (30495)
- alignways (30416)
- areaselector (1409913276)
- buildings_tools (30485)
- cadastre-fr (30416)
- conflation (0.1.7)
- contourmerge (1010)
- dataimport (30416)
- download_along (30416)
- geotools (30569)
- imagery_offset_db (30534)
- importvec (30416)
- jts (30416)
- livegps (30506)
- mapdust (30502)
- merge-overlap (30416)
- mirrored_download (30495)
- namemanager (30416)
- notes (v0.9.4)
- opendata (30607)
- pdfimport (30416)
- public_transport (30416)
- reverter (30521)
- scripting (30700)
- surveyor (30440)
- tageditor (30488)
- terracer (30614)
- turnlanes (30416)
- turnrestrictions (30454)
- undelete (30416)
- utilsplugin2 (30460)

Last errors/warnings:
- E: Failed to locate image ''
- E: Failed to locate image ''
- W: Detected deprecated 'canvas{background-color}' in 'https://josm.openstreetmap.de/josmfile?page=Styles/TreeCrownDiameter&style' which will be removed shortly. Use 'fill-color' instead.
- E: java.lang.RuntimeException: Join areas internal error.

java.lang.RuntimeException: Join areas internal error.
	at org.openstreetmap.josm.actions.JoinAreasAction.findBoundaryPolygons(JoinAreasAction.java:1088)
	at org.openstreetmap.josm.actions.JoinAreasAction.joinAreas(JoinAreasAction.java:572)
	at org.openstreetmap.josm.actions.JoinAreasAction.actionPerformed(JoinAreasAction.java:457)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2346)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259)
	at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252)
	at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:289)
	at java.awt.Component.processMouseEvent(Component.java:6525)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
	at java.awt.Component.processEvent(Component.java:6290)
	at java.awt.Container.processEvent(Container.java:2234)
	at java.awt.Component.dispatchEventImpl(Component.java:4881)
	at java.awt.Container.dispatchEventImpl(Container.java:2292)
	at java.awt.Component.dispatchEvent(Component.java:4703)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4898)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4533)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4462)
	at java.awt.Container.dispatchEventImpl(Container.java:2278)
	at java.awt.Window.dispatchEventImpl(Window.java:2739)
	at java.awt.Component.dispatchEvent(Component.java:4703)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:746)
	at java.awt.EventQueue.access$400(EventQueue.java:97)
	at java.awt.EventQueue$3.run(EventQueue.java:697)
	at java.awt.EventQueue$3.run(EventQueue.java:691)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:86)
	at java.awt.EventQueue$4.run(EventQueue.java:719)
	at java.awt.EventQueue$4.run(EventQueue.java:717)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:716)
	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)

}}}
"	defect	closed	major	20.02	Core		fixed	template_report join area	Balaitous oligo naoliv hsonesson@…