While activating a backround image

[anonymous]

What steps will reproduce the problem?

1. import new backround image (jpeg) from file
2. activate newly imported backround image (green checkmark)
3. this is when the error happens

What is the expected result?

no error. Trying to activate image

What happens instead?

the error opend up

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: 2017-04-02 01:45:00 +0200 (Sun, 02 Apr 2017)
Build-Date:2017-04-02 01:34:50
Revision:11826
Relative:URL: ^/trunk

Identification: JOSM/1.5 (11826 de) Mac OS X 10.12.3
Memory Usage: 818 MB / 1820 MB (305 MB allocated, but free)
Java version: 1.8.0_121-b13, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: Display 69732992 1280x800
Maximum Screen Size: 1280x800
VM arguments: [-Djava.security.policy=file:<java.home>/lib/security/javaws.policy, -DtrustProxy=true, -Djnlpx.home=<java.home>/bin, -Djava.security.manager, -Djnlpx.origFilenameArg=/Applications/josm.jnlp, -Djnlpx.remove=true, -Dsun.awt.warmup=true, -Djava.util.Arrays.useLegacyMergeSort=true, -Dmacosx.jnlpx.dock.name=JOSM, -Dmacosx.jnlpx.dock.icon=${HOME}/Library/Application Support/Oracle/Java/Deployment/cache/6.0/16/47ee53d0-73e57720.icns, -Djnlpx.jvm="<java.home>/bin/java"]

Plugins:
+ HouseNumberTaggingTool (33160)
+ ImportImagePlugin (33028)
+ PicLayer (33148)
+ apache-commons (32994)
+ buildings_tools (33004)
+ continuosDownload (53)
+ dataimport (33024)
+ ejml (32680)
+ geotools (33042)
+ imagery_offset_db (33004)
+ imageryadjust (33004)
+ jts (32699)
+ log4j (32699)
+ opendata (33197)
+ tofix (277)
+ utilsplugin2 (33212)
+ wikipedia (33098)

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
- E: Handled by bug report queue: java.lang.NullPointerException
- W: Invalid jar file ''<josm.userdata>/plugins/wikipedia.jar.new'' (exists: false, canRead: false)
- E: Handled by bug report queue: java.lang.IllegalArgumentException: Listener imageryadjust.ImageryAdjustMapMode@4fd71f87 (instance of imageryadjust.ImageryAdjustMapMode) was not registered before or already removed.


=== REPORTED CRASH DATA ===
BugReportExceptionHandler#handleException:
No data collected.

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: AWT-EventQueue-2 (50) of javawsApplicationThreadGroup
java.lang.IllegalArgumentException: Listener imageryadjust.ImageryAdjustMapMode@4fd71f87 (instance of imageryadjust.ImageryAdjustMapMode) was not registered before or already removed.
	at org.openstreetmap.josm.tools.ListenerList.failRemove(ListenerList.java:134)
	at org.openstreetmap.josm.tools.ListenerList$TracingListenerList.failRemove(ListenerList.java:211)
	at org.openstreetmap.josm.tools.ListenerList.removeListener(ListenerList.java:128)
	at org.openstreetmap.josm.tools.ListenerList$TracingListenerList.removeListener(ListenerList.java:195)
	at org.openstreetmap.josm.data.Preferences.removePreferenceChangeListener(Preferences.java:247)
	at org.openstreetmap.josm.actions.mapmode.MapMode.exitMode(MapMode.java:107)
	at imageryadjust.ImageryAdjustMapMode.exitMode(ImageryAdjustMapMode.java:103)
	at org.openstreetmap.josm.gui.MapFrame.activeOrEditLayerChanged(MapFrame.java:790)
	at org.openstreetmap.josm.gui.layer.MainLayerManager.fireActiveLayerChange(MainLayerManager.java:238)
	at org.openstreetmap.josm.gui.layer.MainLayerManager.setActiveLayer(MainLayerManager.java:231)
	at org.openstreetmap.josm.gui.layer.MainLayerManager.realSetActiveLayer(MainLayerManager.java:220)
	at org.openstreetmap.josm.gui.layer.MainLayerManager.lambda$setActiveLayer$0(MainLayerManager.java:214)
	at org.openstreetmap.josm.gui.util.GuiHelper.runInEDTAndWaitWithException(GuiHelper.java:138)
	at org.openstreetmap.josm.gui.layer.MainLayerManager.setActiveLayer(MainLayerManager.java:214)
	at org.openstreetmap.josm.gui.dialogs.layer.ActivateLayerAction.execute(ActivateLayerAction.java:80)
	at org.openstreetmap.josm.gui.dialogs.layer.ActivateLayerAction.actionPerformed(ActivateLayerAction.java:75)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022)
	at javax.swing.AbstractButton$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:6533)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3324)
	at java.awt.Component.processEvent(Component.java:6298)
	at java.awt.Container.processEvent(Container.java:2236)
	at java.awt.Component.dispatchEventImpl(Component.java:4889)
	at java.awt.Container.dispatchEventImpl(Container.java:2294)
	at java.awt.Component.dispatchEvent(Component.java:4711)
	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:2746)
	at java.awt.Component.dispatchEvent(Component.java:4711)
	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:80)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:90)
	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:80)
	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)

[Klumbumbus]

Closed as duplicate of #13754.