Error when adding ways to relation

[Atalanttore]

Hi,

JOSM reports this error when I try to add a coastline to an existing relation.

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2015-07-07 01:32:22
Last Changed Author: wiktorn
Revision: 8576
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Relative URL: ^/trunk
URL: http://josm.openstreetmap.de/svn/trunk


Last Changed Date: 2015-07-06 20:12:05 +0200 (Mon, 06 Jul 2015)
Last Changed Rev: 8576

Identification: JOSM/1.5 (8576 de) Linux Ubuntu 15.04
Memory Usage: 402 MB / 860 MB (322 MB allocated, but free)
Java version: 1.7.0_80, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Dataset consistency test: No problems found

Plugins:
- FastDraw (31265)
- HouseNumberTaggingTool (31241)
- OpeningHoursEditor (31241)
- RoadSigns (31241)
- buildings_tools (31241)
- editgpx (31241)
- imagery_offset_db (31241)
- log4j (31231)
- public_transport (31241)
- routes (31241)
- routing (31241)
- tageditor (31241)
- terracer (31241)
- turnlanes (31241)
- turnrestrictions (31241)
- undelete (31241)
- utilsplugin2 (31241)
- waydownloader (31241)

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

java.lang.UnsupportedOperationException
	at java.util.AbstractMap.put(AbstractMap.java:203)
	at org.openstreetmap.josm.gui.tagging.TagEditorModel.applyToTags(TagEditorModel.java:434)
	at org.openstreetmap.josm.gui.tagging.TagEditorModel.applyToPrimitive(TagEditorModel.java:410)
	at org.openstreetmap.josm.gui.dialogs.relation.GenericRelationEditor$1.getSelection(GenericRelationEditor.java:149)
	at org.openstreetmap.josm.gui.dialogs.relation.MemberTableModel.addMembersAtIndex(MemberTableModel.java:413)
	at org.openstreetmap.josm.gui.dialogs.relation.MemberTableModel.addMembersAtBeginning(MemberTableModel.java:438)
	at org.openstreetmap.josm.gui.dialogs.relation.GenericRelationEditor$AddSelectedAtStartAction.actionPerformed(GenericRelationEditor.java:844)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341)
	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:6516)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3321)
	at java.awt.Component.processEvent(Component.java:6281)
	at java.awt.Container.processEvent(Container.java:2229)
	at java.awt.Component.dispatchEventImpl(Component.java:4872)
	at java.awt.Container.dispatchEventImpl(Container.java:2287)
	at java.awt.Component.dispatchEvent(Component.java:4698)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422)
	at java.awt.Container.dispatchEventImpl(Container.java:2273)
	at java.awt.Window.dispatchEventImpl(Window.java:2719)
	at java.awt.Component.dispatchEvent(Component.java:4698)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:747)
	at java.awt.EventQueue.access$300(EventQueue.java:103)
	at java.awt.EventQueue$3.run(EventQueue.java:706)
	at java.awt.EventQueue$3.run(EventQueue.java:704)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.awt.EventQueue$4.run(EventQueue.java:720)
	at java.awt.EventQueue$4.run(EventQueue.java:718)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:717)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)

Best Regards,
Ettore

[Don-vip]

Closed as duplicate of #11664.