Updating plugin (turnlanes) causes exception

[Stereo]

What steps will reproduce the problem?

1. Start JOSM with an old turnlanes plugin
2. Update the plugin in the dialog

What is the expected result?

Plugin updated

What happens instead?

Exception

Please provide any additional information below. Attach a screenshot if possible.

Revision: 8109
Repository Root: http://josm.openstreetmap.de/svn
Relative URL: ^/trunk
Last Changed Author: Don-vip
Last Changed Date: 2015-03-02 00:13:51 +0100 (Mon, 02 Mar 2015)
Build-Date: 2015-03-02 02:30:58
URL: http://josm.openstreetmap.de/svn/trunk
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last Changed Rev: 8109

Identification: JOSM/1.5 (8109 en_GB) Mac OS X 10.10.2
Memory Usage: 668 MB / 3641 MB (439 MB allocated, but free)
Java version: 1.8.0_40, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
VM arguments: [-Djava.library.path=/Applications/JOSM.app/Contents/MacOS, -DLibraryDirectory=/Users/stereo/Library, -DDocumentsDirectory=/Users/stereo/Documents, -DApplicationSupportDirectory=/Users/stereo/Library/Application Support, -DCachesDirectory=/Users/stereo/Library/Caches, -DSandboxEnabled=false, -Dapple.laf.useScreenMenuBar=true, -Dcom.apple.macos.use-file-dialog-packages=true, -Dcom.apple.macos.useScreenMenuBar=true, -Dcom.apple.mrj.application.apple.menu.about.name=JOSM, -Dcom.apple.smallTabs=true]
Dataset consistency test: No problems found

Plugins:
- AddrInterpolation (30892)
- CADTools (1003)
- CommandLine (30892)
- DirectDownload (30892)
- DirectUpload (30892)
- FixAddresses (30892)
- HouseNumberTaggingTool (30892)
- OpeningHoursEditor (30962)
- PicLayer (30962)
- RoadSigns (30977)
- ShapeTools (1000)
- alignways (30892)
- areaselector (1423773025)
- buildings_tools (30955)
- cadastre-fr (30892)
- conflation (0.1.7)
- contourmerge (1012)
- dataimport (30892)
- download_along (30892)
- geotools (31068)
- imagery-xml-bounds (31019)
- imagery_offset_db (31056)
- importvec (30892)
- jts (31002)
- livegps (30892)
- log4j (30892)
- mapdust (30892)
- merge-overlap (30988)
- mirrored_download (30962)
- namemanager (30892)
- opendata (31050)
- pdfimport (30892)
- public_transport (30892)
- reverter (30990)
- scripting (30702)
- surveyor (30892)
- tageditor (30892)
- terracer (30892)
- turnlanes (30892)
- turnrestrictions (31034)
- undelete (30892)
- utilsplugin2 (31040)

Last errors/warnings:
- E: Unable to load module icon: images/be24.png
- E: Unable to load module icon: images/fr24.png
- W: RemoteControl: invalid selection '' ignored
- E: org.openstreetmap.josm.plugins.PluginException: An error occurred in plug-in turnrestrictions. Cause: java.lang.reflect.InvocationTargetException. Cause: java.lang.NoClassDefFoundError: org/openstreetmap/josm/gui/JMultilineLabel. Cause: java.lang.ClassNotFoundException: org.openstreetmap.josm.gui.JMultilineLabel
- E: Failed to locate image ''

org.openstreetmap.josm.plugins.PluginException: An error occurred in plug-in turnrestrictions
	at org.openstreetmap.josm.plugins.PluginProxy.mapFrameInitialized(PluginProxy.java:34)
	at org.openstreetmap.josm.Main.setMapFrame(Main.java:506)
	at org.openstreetmap.josm.Main.createMapFrame(Main.java:759)
	at org.openstreetmap.josm.Main.addLayer(Main.java:746)
	at org.openstreetmap.josm.Main.addLayer(Main.java:731)
	at org.openstreetmap.josm.actions.downloadtasks.DownloadOsmTask$AbstractInternalTask.addNewLayerIfRequired(DownloadOsmTask.java:277)
	at org.openstreetmap.josm.actions.downloadtasks.DownloadOsmTask$AbstractInternalTask.loadData(DownloadOsmTask.java:284)
	at org.openstreetmap.josm.actions.downloadtasks.DownloadOsmTask$DownloadTask.finish(DownloadOsmTask.java:346)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable$1.run(PleaseWaitRunnable.java:101)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:301)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:749)
	at java.awt.EventQueue.access$500(EventQueue.java:97)
	at java.awt.EventQueue$3.run(EventQueue.java:702)
	at java.awt.EventQueue$3.run(EventQueue.java:696)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:719)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:109)
	at java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:184)
	at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:229)
	at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:227)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:227)
	at java.awt.Dialog.show(Dialog.java:1084)
	at java.awt.Component.show(Component.java:1654)
	at java.awt.Component.setVisible(Component.java:1606)
	at java.awt.Window.setVisible(Window.java:1014)
	at java.awt.Dialog.setVisible(Dialog.java:1005)
	at org.openstreetmap.josm.gui.progress.PleaseWaitProgressMonitor$4.run(PleaseWaitProgressMonitor.java:172)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:749)
	at java.awt.EventQueue.access$500(EventQueue.java:97)
	at java.awt.EventQueue$3.run(EventQueue.java:702)
	at java.awt.EventQueue$3.run(EventQueue.java:696)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:75)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:719)
	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)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
...<snip>...