﻿id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
13000	[Patch] Exception when deleting last layer for 2nd time	malenki	michael2402	"==== What steps will reproduce the problem?
1. Start up JOSM
2. Press ctrl-N to create a new data layer
3. Delete the layer
4. Press ctrl-N to create a new data layer
5. Delete the layer

==== What is the expected result?

Layer gets just deleted

==== What happens instead?

The exception mentioned below.
This behaviour is reliable reproducable. 

But it doesn't occur with a blank ~/.josm so some plugins may have their say, too. 
This behaviour didn't occur in older versions but I have to do further testing to tell numbers.

==== 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: 2016-06-19 02:15:46 +0200 (Sun, 19 Jun 2016)
Build-Date:2016-06-19 01:34:13
Revision:10422
Relative:URL: ^/trunk

Identification: JOSM/1.5 (10422 de) Linux Debian GNU/Linux unstable (sid)
Memory Usage: 693 MB / 2222 MB (543 MB allocated, but free)
Java version: 1.8.0_91-b14, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
VM arguments: [-Dsun.java2d.opengl=false]

Plugins:
- FastDraw (32158)
- FixAddresses (32158)
- HouseNumberTaggingTool (31926)
- ImportImagePlugin (32287)
- InfoMode (32158)
- Mapillary (32158)
- OpeningHoursEditor (32158)
- PicLayer (32158)
- RoadSigns (32177)
- ShapeTools (1000)
- apache-commons (32158)
- apache-http (32158)
- buildings_tools (32158)
- continuosDownload (53)
- contourmerge (1014)
- download_along (32158)
- ejml (32158)
- ext_tools (32158)
- geotools (31895)
- gson (32158)
- imagery_offset_db (32158)
- jts (31906)
- log4j (32158)
- mapdust (31923)
- measurement (32158)
- opendata (32289)
- photo_geotagging (32158)
- photoadjust (32158)
- reltoolbox (32158)
- reverter (32158)
- tag2link (31923)
- tageditor (32158)
- terracer (32158)
- todo (29154)
- turnrestrictions (32158)
- undelete (32158)
- utilsplugin2 (32158)
- waydownloader (32158)
- wikipedia (32182)

Tagging presets:
- http://www.country-linedance.de/daten/Archaeologie-de.zip
- https://josm.openstreetmap.de/josmfile?page=Presets/Camp_site_extends&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/Crafts&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/Czech_hiking&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/Heritage&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/Leaftype&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/Light_sources&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/Mountains&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/ParkingLanes&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/Playground_Equipment&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/SentieriItaliani&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/Towers&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/Trees&zip=1
- https://josm.openstreetmap.de/josmfile?page=Presets/hiking_routes_with_trail_marking&zip=1
- https://raw.githubusercontent.com/OpenSeaMap/josm/master/Presets_Sport.xml

Map paint styles:
- https://josm.openstreetmap.de/josmfile?page=Styles/AddressValidator&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/Lit&style&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/LitObjects&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/Maxspeed&style&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/Osmc&style&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/OsmcSKCZPL&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/ParkingLanes&style&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/SlovakiaBicycleRoutes&style&zip=1

Last errors/warnings:
- W: Old style SideButton usage for action org.openstreetmap.josm.plugins.todo.TodoDialog$SelectAction@2facd186
- W: Old style SideButton usage for action org.openstreetmap.josm.plugins.todo.TodoDialog$AddAction@7ea29031
- W: Old style SideButton usage for action org.openstreetmap.josm.plugins.todo.TodoDialog$PassAction@4ff55774
- W: Old style SideButton usage for action org.openstreetmap.josm.plugins.todo.TodoDialog$MarkAction@2f14750d
- E: java.lang.IllegalArgumentException: Listener was not registered before: LayerChangeAdapter [org.openstreetmap.josm.plugins.fixAddresses.gui.actions.SelectAddressesInMapAction@642cbbdd]

java.lang.IllegalArgumentException: Listener was not registered before: LayerChangeAdapter [org.openstreetmap.josm.plugins.fixAddresses.gui.actions.SelectAddressesInMapAction@642cbbdd]
	at org.openstreetmap.josm.gui.layer.LayerManager.removeLayerChangeListener(LayerManager.java:316)
	at org.openstreetmap.josm.gui.layer.LayerManager.removeLayerChangeListener(LayerManager.java:304)
	at org.openstreetmap.josm.actions.JosmAction.destroy(JosmAction.java:220)
	at org.openstreetmap.josm.gui.SideButton.destroy(SideButton.java:138)
	at org.openstreetmap.josm.gui.dialogs.ToggleDialog.destroyComponents(ToggleDialog.java:458)
	at org.openstreetmap.josm.gui.dialogs.ToggleDialog.destroyComponents(ToggleDialog.java:454)
	at org.openstreetmap.josm.gui.dialogs.ToggleDialog.destroyComponents(ToggleDialog.java:454)
	at org.openstreetmap.josm.gui.dialogs.ToggleDialog.destroyComponents(ToggleDialog.java:454)
	at org.openstreetmap.josm.gui.dialogs.ToggleDialog.destroy(ToggleDialog.java:448)
	at org.openstreetmap.josm.gui.dialogs.DialogsPanel.destroy(DialogsPanel.java:325)
	at org.openstreetmap.josm.gui.MapFrame.destroy(MapFrame.java:338)
	at org.openstreetmap.josm.Main.setMapFrame(Main.java:559)
	at org.openstreetmap.josm.Main.removeLayer(Main.java:590)
	at org.openstreetmap.josm.gui.dialogs.layer.DeleteLayerAction.actionPerformed(DeleteLayerAction.java:48)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348)
	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:6535)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
	at java.awt.Component.processEvent(Component.java:6300)
	at java.awt.Container.processEvent(Container.java:2236)
	at java.awt.Component.dispatchEventImpl(Component.java:4891)
	at java.awt.Container.dispatchEventImpl(Container.java:2294)
	at java.awt.Component.dispatchEvent(Component.java:4713)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466)
	at java.awt.Container.dispatchEventImpl(Container.java:2280)
	at java.awt.Window.dispatchEventImpl(Window.java:2750)
	at java.awt.Component.dispatchEvent(Component.java:4713)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
	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.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
	at java.awt.EventQueue$4.run(EventQueue.java:731)
	at java.awt.EventQueue$4.run(EventQueue.java:729)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
	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	normal	16.06	Plugin fixaddresses	latest	fixed	template_report regression gsoc-core	
