exception when running Validator

[dobratzp]

What steps will reproduce the problem?

1. Do some map editing
2. Press Shift+V to run the Validator.

What is the expected result?

Application does not throw an exception

What happens instead?

Application threw an exception.

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

Revision: 8677
Repository Root: http://josm.openstreetmap.de/svn
Relative URL: ^/trunk
Last Changed Author: Don-vip
Last Changed Date: 2015-08-21 22:18:03 +0200 (Fri, 21 Aug 2015)
Build-Date: 2015-08-21 23:32:08
URL: http://josm.openstreetmap.de/svn/trunk
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last Changed Rev: 8677

Identification: JOSM/1.5 (8677 en) Mac OS X 10.10.5
Memory Usage: 819 MB / 1820 MB (177 MB allocated, but free)
Java version: 1.8.0_45, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Dataset consistency test: No problems found

Plugins:
- FixAddresses (31241)
- OpeningHoursEditor (31241)
- reverter (31241)
- utilsplugin2 (31463)

Last errors/warnings:
- E: java.lang.UnsupportedOperationException

java.lang.UnsupportedOperationException
	at java.util.Collections$1.remove(Collections.java:4684)
	at java.util.AbstractMap.remove(AbstractMap.java:254)
	at org.openstreetmap.josm.data.validation.tests.DuplicateWay.removeUninterestingKeys(DuplicateWay.java:164)
	at org.openstreetmap.josm.data.validation.tests.DuplicateWay.visit(DuplicateWay.java:190)
	at org.openstreetmap.josm.data.osm.Way.accept(Way.java:215)
	at org.openstreetmap.josm.data.validation.Test.visit(Test.java:201)
	at org.openstreetmap.josm.actions.ValidateAction$ValidationTask.realRun(ValidateAction.java:170)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.doRealRun(PleaseWaitRunnable.java:93)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:161)
	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)

[dobratzp]

OSM data that I was editing when I got the exception

[dobratzp]

After trying things out, I've narrowed it down to the following Relation:

​http://www.openstreetmap.org/relation/131161

The validator produces the warning "Multipolygon relation should be tagged with area tags and not the outer way"

So I highlight the outer way and do Edit -> Copy. Then I highlight the relation and do Edit -> Paste Tags. Then I select the tags on the outer way and delete them (the buidling=yes tag). Then I run Validation and get the exception.

Looking closely at the data using the Middle mouse button, I see that the outer way has a created_by=Potlatch 0.1f tag on it as well as the building=yes tag. I'm not sure how to remove this tag while editing using JOSM. I believe it is automatically removed on upload.

Even if I manually create the building=yes tag on the relation and remove the building=yes tag on the outer way, I still get the exception with the Validation.

[simon04]

Closed as duplicate of #11827.