id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
13095	Exception on closing layers	mdk	team	"==== What steps will reproduce the problem?
1. Download an area (something which cause validator warnings?)
2. Add Bing aereal imagery layer
3. Validate (add validation layer)
4. Remove Bing layer
5. Remove Data layer

==== What is the expected result?
All layers are closed. No Exception, just showing the start page with news.

==== What happens instead?
Exception

==== Please provide any additional information below. Attach a screenshot if possible.
Afterwards the application has to be restarted, because other operations (like new download) cause other execptions in Plugins etc.

{{{
URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2016-06-30 20:43:22 +0200 (Thu, 30 Jun 2016)
Build-Date:2016-07-01 01:33:37
Revision:10504
Relative:URL: ^/trunk

Identification: JOSM/1.5 (10504 en) Linux Ubuntu 15.10
Memory Usage: 422 MB / 876 MB (106 MB allocated, but free)
Java version: 1.8.0_91-8u91-b14-0ubuntu4~15.10.1-b14, Oracle Corporation, OpenJDK Server VM
VM arguments: [-Djosm.restart=true, -Djosm.home=<josm.pref>, -Djava.net.useSystemProxies=true]
Dataset consistency test: No problems found

Plugins:
- ColumbusCSV (32292)
- FastDraw (32158)
- HouseNumberTaggingTool (31926)
- Mapillary (32396)
- OpeningHoursEditor (32158)
- RoadSigns (32177)
- apache-commons (32158)
- apache-http (32158)
- buildings_tools (32158)
- contourmerge (1014)
- imagery-xml-bounds (32287)
- imagery_offset_db (32158)
- pbf (32290)
- poly (32287)
- public_transport (32158)
- reltoolbox (32158)
- reverter (32158)
- terracer (32158)
- turnlanes (32158)
- turnrestrictions (32386)
- utilsplugin2 (32158)

Tagging presets:
- https://josm.openstreetmap.de/josmfile?page=Presets/LaneAttributes&preset&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/OneClick&zip=1

Map paint styles:
- https://josm.openstreetmap.de/josmfile?page=Styles/Lane_and_Road_Attributes&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/Maxspeed&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/Traffic_signs&zip=1

Last errors/warnings:
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: java.io.IOException: Attribution is not loaded yet
- W: Some of the key listeners forgot to remove themselves: [org.openstreetmap.josm.actions.mapmode.SelectAction@14d9fbf]
- W: Some of the key modifier listeners forgot to remove themselves: [org.openstreetmap.josm.actions.mapmode.SelectAction@14d9fbf]
- E: java.lang.IllegalStateException: Dialog not created yet. Invoke createInstance() first

java.lang.IllegalStateException: Dialog not created yet. Invoke createInstance() first
	at org.openstreetmap.josm.gui.dialogs.LayerListDialog.getInstance(LayerListDialog.java:112)
	at org.openstreetmap.josm.actions.AutoScaleAction.getFirstSelectedLayer(AutoScaleAction.java:227)
	at org.openstreetmap.josm.actions.AutoScaleAction.updateEnabledState(AutoScaleAction.java:354)
	at org.openstreetmap.josm.actions.AutoScaleAction$MapFrameAdapter.mapFrameInitialized(AutoScaleAction.java:443)
	at org.openstreetmap.josm.gui.MainPanel.updateContent(MainPanel.java:82)
	at org.openstreetmap.josm.gui.MainPanel$1$1.run(MainPanel.java:170)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
	at java.awt.EventQueue.access$500(EventQueue.java:97)
	at java.awt.EventQueue$3.run(EventQueue.java:709)
	at java.awt.EventQueue$3.run(EventQueue.java:703)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
}}}
"	defect	closed	critical	16.06	Core	latest	fixed	template_report regression gsoc-core autoscale	michael2402