java.lang.NoClassDefFoundError: org/openstreetmap/josm/Main at org.maripo.josm.quicklabel.QuickLabelDialog.<init>(QuickLabelDialog.java:169)

[pschonmann]

Hi Im trying to use quicklabel plugin, but everytime when i want configure it, it crash with these error.
Ways to reproduce,

Run JOSM
Go to View > Quicklabel ---- kaboom !

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2018-11-28 01:09:01 +0100 (Wed, 28 Nov 2018)
Revision:14460
Build-Date:2018-11-28 00:26:41
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (14460 cs) Windows 10 64-Bit
OS Build number: Windows 10 Pro 1803 (17134)
Memory Usage: 444 MB / 4092 MB (199 MB allocated, but free)
Java version: 11.0.1+13-LTS, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: \Display0 1920x1200, \Display1 1280x1024
Maximum Screen Size: 1920x1200

Plugins:
+ BuildingGeneralization (23)
+ CustomizePublicTransportStop (34501)
+ Mapillary (v1.5.17)
+ OpeningHoursEditor (34535)
+ QuickLabel (18)
+ ShapeTools (1240)
+ Tracer-testing (1537729551)
+ apache-commons (34506)
+ apache-http (34632)
+ buildings_tools (34724)
+ continuosDownload (82)
+ download_along (34503)
+ editgpx (34751)
+ ejml (34389)
+ geochat (34512)
+ geojson (87)
+ geotools (34513)
+ imagery_offset_db (34641)
+ jaxb (34506)
+ jna (34633)
+ jts (34524)
+ mapathoner (v0.7.6-dirty)
+ measurement (34529)
+ opendata (34698)
+ pointInfo (34545)
+ pt_assistant (2.1.10)
+ public_transport (34548)
+ tageditor (34560)
+ todo (30306)
+ turnlanes (34566)
+ turnlanes-tagging (272)
+ turnrestrictions (34643)
+ utilsplugin2 (34506)
+ waydownloader (34569)
+ waypoint_search (34038)
+ wikipedia (v1.1.1)

Tagging presets:
+ https://josm.openstreetmap.de/josmfile?page=Presets/Communication_Towers&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/Czech_hiking&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/SentieriItaliani&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/NewTags&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/Trees&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/Crafts&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/Healthcare&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Presets/Czech_Slovak_addresses&zip=1

Map paint styles:
- https://josm.openstreetmap.de/josmfile?page=Styles/PublicTransport&zip=1
- https://josm.openstreetmap.de/josmfile?page=Styles/PublicTransportV2&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Styles/RecyclingMaterials&zip=1
+ https://josm.openstreetmap.de/josmfile?page=Styles/Sidewalks&zip=1
- https://github.com/igitov/forest-josm-style/archive/master.zip

Validator rules:
+ https://josm.openstreetmap.de/josmfile?page=Rules/CzechRepublicAddressSystem&zip=1
+ https://raw.githubusercontent.com/stefan-a-bauer/josm-validators/master/mtb.validator.mapcss

Last errors/warnings:
- W: No configuration settings found.  Using hardcoded default values for all pools.
- W: Varování: Nepodařilo se přečíst informace o modulu ze souboru 'site-svn.openstreetmap.org-_applications_editors_josm_plugins_opendata_modules.txt'. Přeskakuji.
- E: Handled by bug report queue: java.lang.NoClassDefFoundError: org/openstreetmap/josm/Main. Přičina: java.lang.ClassNotFoundException: org.openstreetmap.josm.Main


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

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: AWT-EventQueue-0 (20) of main
java.lang.NoClassDefFoundError: org/openstreetmap/josm/Main
	at org.maripo.josm.quicklabel.QuickLabelDialog.<init>(QuickLabelDialog.java:169)
	at org.maripo.josm.quicklabel.QuickLabelPlugin$Action.actionPerformed(QuickLabelPlugin.java:61)
	at java.desktop/javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1967)
	at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2308)
	at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:405)
	at java.desktop/javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:262)
	at java.desktop/javax.swing.AbstractButton.doClick(AbstractButton.java:369)
	at java.desktop/javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1020)
	at java.desktop/javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1064)
	at java.desktop/java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:297)
	at java.desktop/java.awt.Component.processMouseEvent(Component.java:6632)
	at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3342)
	at java.desktop/java.awt.Component.processEvent(Component.java:6397)
	at java.desktop/java.awt.Container.processEvent(Container.java:2263)
	at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5008)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2321)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4840)
	at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4918)
	at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4547)
	at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4488)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2307)
	at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2772)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4840)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:772)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:95)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:745)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:743)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:742)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
	at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
Caused by: java.lang.ClassNotFoundException: org.openstreetmap.josm.Main
	at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:471)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:588)
	at org.openstreetmap.josm.plugins.PluginClassLoader.loadClass(PluginClassLoader.java:73)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
	... 40 more