NPE in SaveLayersDialog

[naoliv]

I guess I was closing JOSM (but can't remember exactly what caused this):

java.lang.NullPointerException
	at org.openstreetmap.josm.gui.io.SaveLayersDialog$SaveAndProceedAction.redrawIcon(SaveLayersDialog.java:417)
	at org.openstreetmap.josm.gui.io.SaveLayersDialog$SaveAndProceedAction.initForSaveAndExit(SaveLayersDialog.java:402)
	at org.openstreetmap.josm.gui.io.SaveLayersDialog$SaveAndProceedAction.<init>(SaveLayersDialog.java:395)
	at org.openstreetmap.josm.gui.io.SaveLayersDialog.<init>(SaveLayersDialog.java:71)
	at org.openstreetmap.josm.Main.saveUnsavedModifications(Main.java:1044)
	at org.openstreetmap.josm.Main.saveUnsavedModifications(Main.java:1031)
	at org.openstreetmap.josm.Main.exitJosm(Main.java:1085)
	at org.openstreetmap.josm.gui.MainApplication$1.windowClosing(MainApplication.java:115)
	at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:349)
	at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:349)
	at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:349)
	at java.awt.Window.processWindowEvent(Window.java:2058)
	at javax.swing.JFrame.processWindowEvent(JFrame.java:305)
	at java.awt.Window.processEvent(Window.java:2017)
	at java.awt.Component.dispatchEventImpl(Component.java:4891)
	at java.awt.Container.dispatchEventImpl(Container.java:2294)
	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)

JOSM:

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2016-05-11 03:38:33 +0200 (Wed, 11 May 2016)
Build-Date:2016-05-11 01:42:14
Revision:10180
Relative:URL: ^/trunk

Identification: JOSM/1.5 (10180 pt_BR) Linux Debian GNU/Linux testing (stretch)
Memory Usage: 247 MB / 10206 MB (124 MB allocated, but free)
Java version: 1.8.0_91-8u91-b14-2-b14, Oracle Corporation, OpenJDK 64-Bit Server VM
VM arguments: [-Dawt.useSystemAAFontSettings=on]

Plugins:
- Create_grid_of_ways (31772)
- DxfImport (1006)
- OpeningHoursEditor (31772)
- PicLayer (31895)
- RoadSigns (31895)
- SimplifyArea (31895)
- apache-commons (31895)
- buildings_tools (31895)
- conflation (0.1.9)
- contourmerge (1014)
- download_along (31772)
- editgpx (32148)
- ejml (31895)
- geotools (31895)
- imagery_offset_db (32046)
- importvec (31772)
- indoorhelper (32134)
- jts (31772)
- log4j (31895)
- measurement (32153)
- merge-overlap (31967)
- opendata (32139)
- pbf (32128)
- pdfimport (32019)
- poly (31772)
- reverter (32005)
- scripting (30722)
- todo (29154)
- turnrestrictions (31895)
- undelete (31895)
- utilsplugin2 (32099)

[Don-vip]

In 10190/josm:

fix #12838 - NPE