FastDraw throws exception

[trapicki]

What I did?

1. Drew a big closed line
2. Opened FastDraw parameters via Q
3. Somehow lost the reference to the drawn points
4. When asked several times, at last I probably disabled the plugin, and tried to restart.
5. Opening Settings throws this exception

What is the expected result?

What happens instead?

Exception

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

URL:https://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2019-12-31 14:25:24 +0100 (Tue, 31 Dec 2019)
Build-Date:2019-12-31 13:27:22
Revision:15625
Relative:URL: ^/trunk

Identification: JOSM/1.5 (15625 de) Mac OS X 10.13.6
OS Build number: Mac OS X 10.13.6 (17G66)
Memory Usage: 1216 MB / 1820 MB (308 MB allocated, but free)
Java version: 1.8.0_231-b11, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: Display 59593346 1920x1080
Maximum Screen Size: 1920x1080
VM arguments: [-Djava.library.path=/Applications/JOSM.app/Contents/MacOS, -DLibraryDirectory=${HOME}/Library, -DDocumentsDirectory=${HOME}/Documents, -DApplicationSupportDirectory=${HOME}/Library/Application Support, -DCachesDirectory=${HOME}/Library/Caches, -DApplicationDirectory=${HOME}/Applications, -DAutosavedInformationDirectory=${HOME}/Library/Autosave Information, -DDesktopDirectory=${HOME}/Desktop, -DDownloadsDirectory=${HOME}/Downloads, -DMoviesDirectory=${HOME}/Movies, -DMusicDirectory=${HOME}/Music, -DPicturesDirectory=${HOME}/Pictures, -DSharedPublicDirectory=${HOME}/Public, -DSystemLibraryDirectory=/Library, -DSystemApplicationSupportDirectory=/Library/Application Support, -DSystemCachesDirectory=/Library/Caches, -DSystemApplicationDirectory=/Applications, -DSystemUserDirectory=/Users, -DUserHome=${HOME}, -DSandboxEnabled=true, -DLaunchModifierFlags=0, -DLaunchModifierFlagCapsLock=false, -DLaunchModifierFlagShift=false, -DLaunchModifierFlagControl=false, -DLaunchModifierFlagOption=false, -DLaunchModifierFlagCommand=false, -DLaunchModifierFlagNumericPad=false, -DLaunchModifierFlagHelp=false, -DLaunchModifierFlagFunction=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]

Plugins:
+ FastDraw (35256)

Last errors/warnings:
- E: Handled by bug report queue: java.lang.IllegalArgumentException: Parameter 'data' must not be null
- E: Handled by bug report queue: java.lang.IllegalArgumentException: Parameter 'data' must not be null
- E: Handled by bug report queue: java.lang.IllegalArgumentException: Parameter 'data' must not be null
- E: Handled by bug report queue: java.lang.IllegalArgumentException: Parameter 'data' must not be null
- E: Handled by bug report queue: java.lang.IllegalArgumentException: Parameter 'data' must not be null
- E: Handled by bug report queue: java.lang.IllegalArgumentException: Parameter 'data' must not be null
- E: Handled by bug report queue: java.lang.IllegalArgumentException: Listener org.openstreetmap.josm.plugins.fastdraw.FastDrawingMode@645f31c5 (instance of org.openstreetmap.josm.plugins.fastdraw.FastDrawingMode) was not registered before or already removed.
- E: Handled by bug report queue: java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.FutureTask@795e4d8a rejected from org.openstreetmap.josm.gui.progress.swing.ProgressMonitorExecutor@6bff61f8[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 125]
- E: Handled by bug report queue: java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.FutureTask@503ced0f rejected from org.openstreetmap.josm.gui.progress.swing.ProgressMonitorExecutor@6bff61f8[Terminated, pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 125]
- E: Handled by bug report queue: java.lang.IllegalArgumentException: Listener org.openstreetmap.josm.plugins.fastdraw.FastDrawingMode@645f31c5 (instance of org.openstreetmap.josm.plugins.fastdraw.FastDrawingMode) 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-0 (17) of main
java.lang.IllegalArgumentException: Listener org.openstreetmap.josm.plugins.fastdraw.FastDrawingMode@645f31c5 (instance of org.openstreetmap.josm.plugins.fastdraw.FastDrawingMode) was not registered before or already removed.
	at org.openstreetmap.josm.tools.ListenerList.failRemove(ListenerList.java:132)
	at org.openstreetmap.josm.tools.ListenerList.removeListener(ListenerList.java:126)
	at org.openstreetmap.josm.data.Preferences.removePreferenceChangeListener(Preferences.java:264)
	at org.openstreetmap.josm.actions.mapmode.MapMode.exitMode(MapMode.java:85)
	at org.openstreetmap.josm.plugins.fastdraw.FastDrawingMode.exitMode(FastDrawingMode.java:121)
	at org.openstreetmap.josm.gui.MapFrame.activeOrEditLayerChanged(MapFrame.java:847)
	at org.openstreetmap.josm.gui.layer.MainLayerManager.fireActiveLayerChange(MainLayerManager.java:271)
	at org.openstreetmap.josm.gui.layer.MainLayerManager.setActiveLayer(MainLayerManager.java:264)
	at org.openstreetmap.josm.gui.layer.MainLayerManager.realRemoveSingleLayer(MainLayerManager.java:304)
	at org.openstreetmap.josm.gui.layer.LayerManager.realRemoveLayer(LayerManager.java:265)
	at org.openstreetmap.josm.gui.layer.LayerManager.lambda$removeLayer$1(LayerManager.java:247)
	at org.openstreetmap.josm.gui.util.GuiHelper.runInEDTAndWaitWithException(GuiHelper.java:239)
	at org.openstreetmap.josm.gui.layer.LayerManager.removeLayer(LayerManager.java:247)
	at org.openstreetmap.josm.gui.layer.LayerManager.realResetState(LayerManager.java:514)
	at org.openstreetmap.josm.gui.layer.MainLayerManager.realResetState(MainLayerManager.java:493)
	at org.openstreetmap.josm.gui.util.GuiHelper.runInEDTAndWaitWithException(GuiHelper.java:239)
	at org.openstreetmap.josm.gui.layer.LayerManager.resetState(LayerManager.java:505)
	at org.openstreetmap.josm.gui.MainTermination.run(MainTermination.java:43)
	at org.openstreetmap.josm.spi.lifecycle.Lifecycle.exitJosm(Lifecycle.java:117)
	at org.openstreetmap.josm.gui.MainApplication.exitJosm(MainApplication.java:492)
	at org.openstreetmap.josm.gui.MainFrame$ExitWindowAdapter.windowClosing(MainFrame.java:181)
	at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:349)
	at java.awt.AWTEventMulticaster.windowClosing(AWTEventMulticaster.java:349)
	at java.awt.Window.processWindowEvent(Window.java:2054)
	at javax.swing.JFrame.processWindowEvent(JFrame.java:305)
	at java.awt.Window.processEvent(Window.java:2013)
	at java.awt.Component.dispatchEventImpl(Component.java:4889)
	at java.awt.Container.dispatchEventImpl(Container.java:2297)
	at java.awt.Window.dispatchEventImpl(Window.java:2746)
	at java.awt.Component.dispatchEvent(Component.java:4711)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:760)
	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:74)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:84)
	at java.awt.EventQueue$4.run(EventQueue.java:733)
	at java.awt.EventQueue$4.run(EventQueue.java:731)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:730)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
	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 #17366.