Authentication error closing a changeset

[skyper]

Just had a similar issue then #5783.

1. Edit a lot (all simple edits mostly adds)
2. Sucessfully upload (with closing changeset set)
3. changed tag of two object I had just created.
4. try to upload through "unsaved layer dialog"
5. -> failed due to rejection of OAuth token.

First of all upload worked only closing the changeset failed (wrong error message).
Restarting JOSM my token work again.

This is from the console:

Using /usr/lib/jvm/java-6-openjdk-amd64/bin/java to execute josm.
Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2012-07-16 01:31:09
Last Changed Author: Don-vip
Revision: 5345
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2012-07-15 16:34:27 +0200 (Sun, 15 Jul 2012)
Last Changed Rev: 5345

loading plugin 'restart' (version 28438)
loading plugin 'PicLayer' (version 27883)
loading plugin 'mirrored_download' (version 28418)
loading plugin 'utilsplugin2' (version 28412)
loading plugin 'conflation' (version 0.1.6)
loading plugin 'jts' (version 28415)

POST http://api.openstreetmap.org/api/0.6/changeset/12274272/upload... OK
PUT http://api.openstreetmap.org/api/0.6/changeset/12274272/close... Authorization Required
Error body: Couldn't authenticate you

org.openstreetmap.josm.io.OsmApiException: ResponseCode=401, Error Body=<Couldnt authenticate you>
	at org.openstreetmap.josm.io.OsmApi.sendRequest(OsmApi.java:661)
	at org.openstreetmap.josm.io.OsmApi.sendRequest(OsmApi.java:534)
	at org.openstreetmap.josm.io.OsmApi.closeChangeset(OsmApi.java:448)
	at org.openstreetmap.josm.gui.io.UploadLayerTask.run(UploadLayerTask.java:135)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
	at java.util.concurrent.FutureTask.run(FutureTask.java:166)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
	at java.lang.Thread.run(Thread.java:679)
org.openstreetmap.josm.io.OsmApiException: ResponseCode=401, Error Body=<Couldnt authenticate you>
	at org.openstreetmap.josm.io.OsmApi.sendRequest(OsmApi.java:661)
	at org.openstreetmap.josm.io.OsmApi.sendRequest(OsmApi.java:534)
	at org.openstreetmap.josm.io.OsmApi.closeChangeset(OsmApi.java:448)
	at org.openstreetmap.josm.gui.io.UploadLayerTask.run(UploadLayerTask.java:135)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
	at java.util.concurrent.FutureTask.run(FutureTask.java:166)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
	at java.lang.Thread.run(Thread.java:679)

[stoecker]

Closed as duplicate of #7804.