Exception on connecting second monitor

[Aurimas]

What steps will reproduce the problem?

1. Start JOSM
2. Connect second monitor, if not connected
3. Or disconnect second monitor, if connected

What is the expected result?

Everything works

What happens instead?

JOSM problem report dialog is shown.

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: 2016-04-01 20:52:33 +0200 (Fri, 01 Apr 2016)
Build-Date:2016-04-02 01:32:06
Revision:10096
Relative:URL: ^/trunk

Identification: JOSM/1.5 (10096 lt) Linux Ubuntu Xenial Xerus (development branch)
Memory Usage: 606 MB / 3504 MB (490 MB allocated, but free)
Java version: 1.8.0_02-internal-b03, Oracle Corporation, OpenJDK 64-Bit Server VM
VM arguments: [-Djosm.restart=true, -Djosm.home=/home/aurimas/.josm-latest, -Djava.net.useSystemProxies=true]
Dataset consistency test: No problems found

Plugins:
- Mapillary (32040)
- apache-commons (31895)
- apache-http (31895)
- buildings_tools (31895)
- download_along (31772)
- ejml (31895)
- geotools (31895)
- jts (31772)
- log4j (31895)
- measurement (31895)
- opendata (32130)
- utilsplugin2 (32099)

Map paint styles:
- /home/aurimas/.josm-latest/Styles_Coloured_buildings-style.mapcss
- https://josm.openstreetmap.de/josmfile?page=Styles/Coloured_Streets&style&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/Lane_and_Road_Attributes&zip=1

Validator rules:
- http://www.openrailwaymap.org/validator/openrailwaymap.validator.mapcss

Last errors/warnings:
- E: java.lang.ClassCastException: sun.awt.image.BufImgSurfaceData cannot be cast to sun.java2d.xr.XRSurfaceData
- E: java.lang.ClassCastException: sun.awt.image.BufImgSurfaceData cannot be cast to sun.java2d.xr.XRSurfaceData

java.lang.ClassCastException: sun.awt.image.BufImgSurfaceData cannot be cast to sun.java2d.xr.XRSurfaceData
	at sun.java2d.xr.XRPMBlitLoops.cacheToTmpSurface(XRPMBlitLoops.java:145)
	at sun.java2d.xr.XrSwToPMBlit.Blit(XRPMBlitLoops.java:353)
	at sun.java2d.SurfaceDataProxy.updateSurfaceData(SurfaceDataProxy.java:498)
	at sun.java2d.SurfaceDataProxy.replaceData(SurfaceDataProxy.java:455)
	at sun.java2d.SurfaceData.getSourceSurfaceData(SurfaceData.java:233)
	at sun.java2d.pipe.DrawImage.renderImageCopy(DrawImage.java:566)
	at sun.java2d.pipe.DrawImage.copyImage(DrawImage.java:67)
	at sun.java2d.pipe.DrawImage.copyImage(DrawImage.java:1014)
	at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:3318)
	at sun.java2d.SunGraphics2D.drawImage(SunGraphics2D.java:3296)
	at javax.swing.ImageIcon.paintIcon(ImageIcon.java:425)
	at javax.swing.plaf.basic.BasicButtonUI.paintIcon(BasicButtonUI.java:292)
	at javax.swing.plaf.basic.BasicButtonUI.paint(BasicButtonUI.java:216)
	at javax.swing.plaf.ComponentUI.update(ComponentUI.java:161)
	at javax.swing.plaf.metal.MetalButtonUI.update(MetalButtonUI.java:150)
	at javax.swing.JComponent.paintComponent(JComponent.java:780)
	at javax.swing.JComponent.paint(JComponent.java:1056)
	at javax.swing.JComponent.paintChildren(JComponent.java:889)
	at javax.swing.JComponent.paint(JComponent.java:1065)
	at javax.swing.JComponent.paintChildren(JComponent.java:889)
	at javax.swing.JComponent.paint(JComponent.java:1065)
	at javax.swing.JComponent.paintChildren(JComponent.java:889)
	at javax.swing.JComponent.paint(JComponent.java:1065)
	at javax.swing.JLayeredPane.paint(JLayeredPane.java:586)
	at javax.swing.JComponent.paintChildren(JComponent.java:889)
	at javax.swing.JComponent.paint(JComponent.java:1065)
	at javax.swing.JComponent.paintToOffscreen(JComponent.java:5210)
	at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:290)
	at javax.swing.RepaintManager.paint(RepaintManager.java:1272)
	at javax.swing.JComponent._paintImmediately(JComponent.java:5158)
	at javax.swing.JComponent.paintImmediately(JComponent.java:4969)
	at javax.swing.RepaintManager$4.run(RepaintManager.java:854)
	at javax.swing.RepaintManager$4.run(RepaintManager.java:814)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
	at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:814)
	at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:789)
	at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:738)
	at javax.swing.RepaintManager.access$1200(RepaintManager.java:64)
	at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1732)
	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:76)
	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)

[Don-vip]

Closed as duplicate of #11002.