F11 gave me a dialog requesting I submit a bug report

[anonymous]

What steps will reproduce the problem?

No idea. It could be a one time fluke. I was making edits with the app in full screen mode. Uploaded my changes. Deleted my layers. Pressed F11 to undo full screen, because I wanted to close the app using the X in the corner. Pressing F11 gave me this error.

What is the expected result?

Expected F11 to take me out of full screen mode.

What happens instead?

I got a 'Unexpected Exception' dialog, telling me that I should fill a bug report.

I got the app to quit using the File menu and started it again. F11 seemed to work fine. Probably something else went sideways on me and I didn't notice.

I couldn't reproduce this exception but maybe the content below will give you a clue that I don't have.

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: 2016-05-02 10:23:17 +0200 (Mon, 02 May 2016)
Build-Date:2016-05-03 01:31:45
Revision:10168
Relative:URL: ^/trunk

Identification: JOSM/1.5 (10168 en) Windows 7 64-Bit
Memory Usage: 710 MB / 1362 MB (53 MB allocated, but free)
Java version: 1.8.0_73-b02, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
VM arguments: [-Djava.security.manager, -Djava.util.Arrays.useLegacyMergeSort=true, -Djnlpx.vmargs=LURqYXZhLnV0aWwuQXJyYXlzLnVzZUxlZ2FjeU1lcmdlU29ydD10cnVlAA==, -Djnlpx.jvm=<java.home>\bin\javaw.exe, -Djnlpx.splashport=53249, -Djnlpx.home=<java.home>\bin, -Djnlpx.remove=false, -Djnlpx.offline=false, -Djnlpx.relaunch=true, -Djnlpx.session.data=%UserProfile%\AppData\Local\Temp\session1812626393468440943, -Djnlpx.heapsize=NULL,NULL, -Djava.security.policy=file:<java.home>\lib\security\javaws.policy, -DtrustProxy=true, -Djnlpx.origFilenameArg=https://josm.openstreetmap.de/download/josm.jnlp]

Plugins:
- PicLayer (32158)
- apache-commons (32158)
- buildings_tools (32158)
- dataimport (31926)
- ejml (32158)
- ext_tools (32158)
- geotools (31895)
- jts (31906)
- opendata (32158)
- utilsplugin2 (32158)

Last errors/warnings:
- E: java.net.SocketTimeoutException: connect timed out
- W: org.openstreetmap.josm.io.OsmTransferException: Could not connect to the OSM server. Please check your internet connection.. Cause: java.net.SocketTimeoutException: connect timed out
- E: java.lang.NullPointerException
- E: java.lang.NullPointerException
- E: java.lang.NullPointerException

java.lang.NullPointerException
	at org.openstreetmap.josm.gui.layer.OsmDataLayer.setRecentRelation(OsmDataLayer.java:160)
	at org.openstreetmap.josm.gui.dialogs.relation.RelationEditor.dispose(RelationEditor.java:190)
	at java.awt.Window.disposeImpl(Unknown Source)
	at java.awt.Window$1DisposeAction.run(Unknown Source)
	at java.awt.Window.doDispose(Unknown Source)
	at java.awt.Window.dispose(Unknown Source)
	at org.openstreetmap.josm.actions.FullscreenToggleAction.setMode(FullscreenToggleAction.java:81)
	at org.openstreetmap.josm.actions.FullscreenToggleAction.actionPerformed(FullscreenToggleAction.java:56)
	at javax.swing.SwingUtilities.notifyAction(Unknown Source)
	at javax.swing.JComponent.processKeyBinding(Unknown Source)
	at javax.swing.KeyboardManager.fireBinding(Unknown Source)
	at javax.swing.KeyboardManager.fireKeyboardAction(Unknown Source)
	at javax.swing.JComponent.processKeyBindingsForAllComponents(Unknown Source)
	at javax.swing.JComponent.processKeyBindings(Unknown Source)
	at javax.swing.JComponent.processKeyEvent(Unknown Source)
	at java.awt.Component.processEvent(Unknown Source)
	at java.awt.Container.processEvent(Unknown Source)
	at java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(Unknown Source)
	at java.awt.KeyboardFocusManager.redispatchEvent(Unknown Source)
	at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(Unknown Source)
	at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(Unknown Source)
	at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source)
	at java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source)
	at java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.awt.Window.dispatchEventImpl(Unknown Source)
	at java.awt.Component.dispatchEvent(Unknown Source)
	at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.awt.EventQueue.access$500(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.awt.EventQueue$3.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue$4.run(Unknown Source)
	at java.awt.EventQueue$4.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.awt.EventDispatchThread.run(Unknown Source)

[Don-vip]

In 10280/josm:

fix #12874 - NPE