JOSM does not exit cleanly if unsaved layers are ignored for upload

[pmberry2007@…]

What steps will reproduce the problem?

1. Exit the program with unsaved layers
2. Deselect each layer's upload tickbox
3. Continue to exit

What is the expected result?

Program exits cleanly

What happens instead?

Unexpected error (program still running)

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

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2016-05-30 02:06:54 +0200 (Mon, 30 May 2016)
Build-Date:2016-05-30 01:32:45
Revision:10301
Relative:URL: ^/trunk

Identification: JOSM/1.5 (10301 en_GB) Windows 7 64-Bit
Memory Usage: 387 MB / 910 MB (188 MB allocated, but free)
Java version: 1.8.0_45-b14, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM

Plugins:
- alignways (32161)
- buildings_tools (32158)
- reverter (32158)
- turnrestrictions (32158)
- undelete (32158)

Last errors/warnings:
- E: java.lang.IllegalArgumentException: Listener was not registered before: org.openstreetmap.josm.gui.dialogs.LayerListDialog$LayerListModel@249ff2ab

java.lang.IllegalArgumentException: Listener was not registered before: org.openstreetmap.josm.gui.dialogs.LayerListDialog$LayerListModel@249ff2ab
	at org.openstreetmap.josm.gui.layer.LayerManager.removeLayerChangeListener(LayerManager.java:315)
	at org.openstreetmap.josm.gui.layer.LayerManager.removeLayerChangeListener(LayerManager.java:303)
	at org.openstreetmap.josm.gui.dialogs.LayerListDialog.hideNotify(LayerListDialog.java:340)
	at org.openstreetmap.josm.gui.dialogs.ToggleDialog.destroy(ToggleDialog.java:441)
	at org.openstreetmap.josm.gui.dialogs.LayerListDialog.destroy(LayerListDialog.java:399)
	at org.openstreetmap.josm.gui.dialogs.DialogsPanel.destroy(DialogsPanel.java:297)
	at org.openstreetmap.josm.gui.MapFrame.destroy(MapFrame.java:332)
	at org.openstreetmap.josm.Main.setMapFrame(Main.java:520)
	at org.openstreetmap.josm.Main.removeLayer(Main.java:545)
	at org.openstreetmap.josm.Main.exitJosm(Main.java:1123)
	at org.openstreetmap.josm.gui.MainApplication$1.windowClosing(MainApplication.java:116)
	at java.awt.AWTEventMulticaster.windowClosing(Unknown Source)
	at java.awt.Window.processWindowEvent(Unknown Source)
	at javax.swing.JFrame.processWindowEvent(Unknown Source)
	at java.awt.Window.processEvent(Unknown Source)
	at java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Window.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(Unknown Source)
	at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.awt.EventQueue.access$500(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue$4.run(Unknown Source)
	at java.awt.EventQueue$4.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)

[michael2402]

Thanks for the steps to reproduce.

This issue is the same as #12897, a patch to fix it is attached there.

[michael2402]

Closed as duplicate of #12897.