id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
14650	[PATCH] IAE: Invalid number of points in LinearRing	bagage	Don-vip	"==== What steps will reproduce the problem?
1. Open the bug.osm attached file. Select the way as reference layer
2. Use anything as subject layer
3. Hit ""Generate matches""

==== What is the expected result?

Matches are generated.

==== What happens instead?

Exception is thrown ""java.lang.IllegalArgumentException: Invalid number of points in LinearRing (found 3 - must be 0 or >= 4)"".
==== Please provide any additional information below. Attach a screenshot if possible.

{{{
Build-Date:2017-04-10 14:26:00
Revision:11883
Is-Local-Build:true

Identification: JOSM/1.5 (11883 SVN en) Linux Debian GNU/Linux 9.0 (stretch)
Memory Usage: 823 MB / 1760 MB (142 MB allocated, but free)
Java version: 1.8.0_121-8u121-b13-4-b13, Oracle Corporation, OpenJDK 64-Bit Server VM
Screen: :0.0 1920x1080
Maximum Screen Size: 1920x1080
Java package: openjdk-8-jre:amd64-8u121-b13-4
Java ATK Wrapper package: libatk-wrapper-java:all-0.33.3-13
Program arguments: [--language=en, ${HOME}/majcadastre/CL325-SAINT-RAMBERT-D ALBON/CL325-SAINT-RAMBERT-D ALBON-houses-simplifie.osm]
Dataset consistency test: No problems found

Plugins:
+ PicLayer (33148)
+ buildings_tools (33004)
+ conflation (0.5.3)
+ jts (32699)
+ rex (26)
+ todo (30000)
+ utilsplugin2 (33212)

Last errors/warnings:
- W: Old style SideButton usage for action org.openstreetmap.josm.plugins.todo.TodoDialog$MarkAction@4d2adbc0
- W: Old style SideButton usage for action org.openstreetmap.josm.plugins.todo.TodoDialog$MarkSelectedAction@383a536
- E: Handled by bug report queue: java.lang.IllegalArgumentException: Invalid number of points in LinearRing (found 3 - must be 0 or >= 4)
- E: Handled by bug report queue: java.lang.IllegalArgumentException: Invalid number of points in LinearRing (found 3 - must be 0 or >= 4)
- E: Handled by bug report queue: java.lang.IllegalArgumentException: Invalid number of points in LinearRing (found 3 - must be 0 or >= 4)
- E: Handled by bug report queue: java.lang.IllegalArgumentException: Invalid number of points in LinearRing (found 3 - must be 0 or >= 4)
- E: Handled by bug report queue: java.lang.IllegalArgumentException: Invalid number of points in LinearRing (found 3 - must be 0 or >= 4)
- E: Handled by bug report queue: java.lang.IllegalArgumentException: Invalid number of points in LinearRing (found 3 - must be 0 or >= 4)
- E: Handled by bug report queue: java.lang.IllegalArgumentException: Invalid number of points in LinearRing (found 3 - must be 0 or >= 4)
- E: Handled by bug report queue: java.lang.IllegalArgumentException: Invalid number of points in LinearRing (found 3 - must be 0 or >= 4)


=== REPORTED CRASH DATA ===
BugReportExceptionHandler#handleException:
No data collected.

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: AWT-EventQueue-0 (17) of main
java.lang.IllegalArgumentException: Invalid number of points in LinearRing (found 3 - must be 0 or >= 4)
	at com.vividsolutions.jts.geom.LinearRing.validateConstruction(LinearRing.java:114)
	at com.vividsolutions.jts.geom.LinearRing.<init>(LinearRing.java:106)
	at org.openstreetmap.josm.plugins.jts.JTSConverter.convertWay(JTSConverter.java:93)
	at org.openstreetmap.josm.plugins.jts.JTSConverter.convert(JTSConverter.java:104)
	at org.openstreetmap.josm.plugins.conflation.OsmFeature.<init>(OsmFeature.java:35)
	at org.openstreetmap.josm.plugins.conflation.MatchesComputation.createFeatureCollection(MatchesComputation.java:119)
	at org.openstreetmap.josm.plugins.conflation.MatchesComputation.generateMatches(MatchesComputation.java:48)
	at org.openstreetmap.josm.plugins.conflation.ConflationToggleDialog$2.realRun(ConflationToggleDialog.java:1142)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.doRealRun(PleaseWaitRunnable.java:95)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:143)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
}}}
"	defect	closed	normal		Plugin jts	latest	fixed	template_report