NPE at org.openstreetmap.josm.Main.addMapFrameListener(Main.java:1166)

[naoliv]

While starting JOSM today:

2017-05-12 09:15:28.881 GRAVE: java.util.concurrent.ExecutionException: java.lang.NullPointerException. Causa: java.lang.NullPointerException
java.util.concurrent.ExecutionException: java.lang.NullPointerException
	at java.util.concurrent.FutureTask.report(FutureTask.java:122)
	at java.util.concurrent.FutureTask.get(FutureTask.java:192)
	at org.openstreetmap.josm.gui.util.GuiHelper.runInEDTAndWaitAndReturn(GuiHelper.java:169)
	at org.openstreetmap.josm.Main.exitJosm(Main.java:830)
	at org.openstreetmap.josm.actions.RestartAction.restartJOSM(RestartAction.java:87)
	at org.openstreetmap.josm.actions.RestartAction.actionPerformed(RestartAction.java:67)
	at org.openstreetmap.josm.gui.MainApplication.lambda$checkIPv6$4(MainApplication.java:496)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
	at org.openstreetmap.josm.Main.addMapFrameListener(Main.java:1166)
	at org.openstreetmap.josm.actions.SessionSaveAsAction.<init>(SessionSaveAsAction.java:75)
	at org.openstreetmap.josm.gui.io.SaveLayersDialog$SaveSessionAction.<init>(SaveLayersDialog.java:432)
	at org.openstreetmap.josm.gui.io.SaveLayersDialog.<init>(SaveLayersDialog.java:87)
	at org.openstreetmap.josm.gui.io.SaveLayersDialog.saveUnsavedModifications(SaveLayersDialog.java:105)
	at org.openstreetmap.josm.Main.lambda$exitJosm$7(Main.java:831)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	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:80)
	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)

And there is this one too while loading log4j:

2017-05-12 09:15:37.284 INFORMAÇÕES: carregando plugin 'log4j' (versão 32699)
2017-05-12 09:15:37.287 GRAVE: java.lang.NullPointerException
java.lang.NullPointerException
	at org.openstreetmap.josm.Main.addAndFireMapFrameListener(Main.java:1155)
	at org.openstreetmap.josm.plugins.PluginHandler.loadPlugin(PluginHandler.java:760)
	at org.openstreetmap.josm.plugins.PluginHandler.loadPlugins(PluginHandler.java:810)
	at org.openstreetmap.josm.plugins.PluginHandler.loadEarlyPlugins(PluginHandler.java:832)
	at org.openstreetmap.josm.gui.MainApplication.updateAndLoadEarlyPlugins(MainApplication.java:425)
	at org.openstreetmap.josm.gui.MainApplication.main(MainApplication.java:347)

JOSM:

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2017-05-12 01:28:59 +0200 (Fri, 12 May 2017)
Build-Date:2017-05-12 01:34:17
Revision:12125
Relative:URL: ^/trunk

Identification: JOSM/1.5 (12125 pt_BR) Linux Debian GNU/Linux 9.0 (stretch)
Memory Usage: 247 MB / 10206 MB (100 MB allocated, but free)
Java version: 1.8.0_131-8u131-b11-1-b11, Oracle Corporation, OpenJDK 64-Bit Server VM
Screen: :0.0 1600x900, :0.1 1280x1024
Maximum Screen Size: 1600x1024
Java package: openjdk-8-jre:amd64-8u131-b11-1
Java ATK Wrapper package: libatk-wrapper-java:all-0.33.3-13
VM arguments: [-Dawt.useSystemAAFontSettings=on]

Plugins:
+ Create_grid_of_ways (32699)
+ FastDraw (33182)
+ ImportImagePlugin (33028)
+ OpeningHoursEditor (33185)
+ PicLayer (33148)
+ RoadSigns (33204)
+ SimplifyArea (33004)
+ apache-commons (32994)
+ buildings_tools (33004)
+ conflation (0.5.4)
+ contourmerge (1030)
+ download_along (32946)
+ editgpx (33004)
+ ejml (32680)
+ geojson (52)
+ geotools (33042)
+ importvec (33088)
+ indoorhelper (33088)
+ jts (32699)
+ log4j (32699)
+ measurement (33088)
+ merge-overlap (33154)
+ opendata (33245)
+ pbf (33241)
+ pdfimport (33004)
+ poly (33004)
+ reverter (33088)
+ scripting (30764)
+ tageditor (33021)
+ todo (30100)
+ turnlanes (33294)
+ turnlanes-tagging (254)
+ turnrestrictions (33088)
+ undelete (33263)
+ utilsplugin2 (33297)