ClassCastException with Java 9

[lkuka@…]

What steps will reproduce the problem?

1. Exception when element editing

What is the expected result?

What happens instead?

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

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2019-08-26 08:55:27 +0200 (Mon, 26 Aug 2019)
Revision:15322
Build-Date:2019-08-26 06:57:10
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (15322 ru) Mac OS X 10.12.6
OS Build number: Mac OS X 10.12.6 (16G2128)
Memory Usage: 685 MB / 2048 MB (300 MB allocated, but free)
Java version: 9.0.4+11, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: Display 69732800 1280x800
Maximum Screen Size: 1280x800
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]
Dataset consistency test: No problems found

Plugins:
+ utilsplugin2 (35098)

Last errors/warnings:
- W: java.net.SocketTimeoutException: Read timed out
- W: java.net.SocketTimeoutException: Read timed out
- W: java.net.SocketTimeoutException: Read timed out
- E: Handled by bug report queue: java.lang.ClassCastException: org.openstreetmap.josm.gui.widgets.QuadStateCheckBox$QuadStateDecorator cannot be cast to java.desktop/javax.swing.JToggleButton$ToggleButtonModel
- E: Handled by bug report queue: java.lang.ClassCastException: org.openstreetmap.josm.gui.widgets.QuadStateCheckBox$QuadStateDecorator cannot be cast to java.desktop/javax.swing.JToggleButton$ToggleButtonModel
- W: java.net.SocketTimeoutException: Read timed out
- W: java.net.SocketTimeoutException: Read timed out
- W: java.net.SocketTimeoutException: Read timed out
- E: Handled by bug report queue: java.lang.ClassCastException: org.openstreetmap.josm.gui.widgets.QuadStateCheckBox$QuadStateDecorator cannot be cast to java.desktop/javax.swing.JToggleButton$ToggleButtonModel
- E: Handled by bug report queue: java.lang.ClassCastException: org.openstreetmap.josm.gui.widgets.QuadStateCheckBox$QuadStateDecorator cannot be cast to java.desktop/javax.swing.JToggleButton$ToggleButtonModel


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

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: AWT-EventQueue-0 (20) of main
java.lang.ClassCastException: org.openstreetmap.josm.gui.widgets.QuadStateCheckBox$QuadStateDecorator cannot be cast to java.desktop/javax.swing.JToggleButton$ToggleButtonModel
	at java.desktop/javax.swing.LayoutFocusTraversalPolicy.accept(Unknown Source)
	at java.desktop/javax.swing.SortingFocusTraversalPolicy.getFirstComponent(Unknown Source)
	at java.desktop/javax.swing.LayoutFocusTraversalPolicy.getFirstComponent(Unknown Source)
	at java.desktop/javax.swing.DefaultFocusManager.getFirstComponent(Unknown Source)
	at java.desktop/javax.swing.LegacyGlueFocusTraversalPolicy.getFirstComponent(Unknown Source)
	at java.desktop/javax.swing.LegacyGlueFocusTraversalPolicy.getDefaultComponent(Unknown Source)
	at java.desktop/java.awt.FocusTraversalPolicy.getInitialComponent(Unknown Source)
	at java.desktop/java.awt.Window.getMostRecentFocusOwner(Unknown Source)
	at java.desktop/java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Window.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Component.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.EventQueue.access$500(Unknown Source)
	at java.desktop/java.awt.EventQueue$3.run(Unknown Source)
	at java.desktop/java.awt.EventQueue$3.run(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
	at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.desktop/java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.desktop/java.awt.WaitDispatchSupport$2.run(Unknown Source)
	at java.desktop/java.awt.WaitDispatchSupport$4.run(Unknown Source)
	at java.desktop/java.awt.WaitDispatchSupport$4.run(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.desktop/java.awt.WaitDispatchSupport.enter(Unknown Source)
	at java.desktop/java.awt.Dialog.show(Unknown Source)
	at java.desktop/java.awt.Component.show(Unknown Source)
	at java.desktop/java.awt.Component.setVisible(Unknown Source)
	at java.desktop/java.awt.Window.setVisible(Unknown Source)
	at java.desktop/java.awt.Dialog.setVisible(Unknown Source)
	at org.openstreetmap.josm.gui.ExtendedDialog.setVisible(ExtendedDialog.java:459)
	at org.openstreetmap.josm.gui.ExtendedDialog.showDialog(ExtendedDialog.java:255)
	at org.openstreetmap.josm.gui.tagging.presets.TaggingPreset$PresetDialog.<init>(TaggingPreset.java:468)
	at org.openstreetmap.josm.gui.tagging.presets.TaggingPreset.showDialog(TaggingPreset.java:511)
	at org.openstreetmap.josm.gui.dialogs.properties.PresetListPanel$LabelMouseAdapter.mouseClicked(PresetListPanel.java:42)
	at java.desktop/java.awt.AWTEventMulticaster.mouseClicked(Unknown Source)
	at java.desktop/java.awt.Component.processMouseEvent(Unknown Source)
	at java.desktop/javax.swing.JComponent.processMouseEvent(Unknown Source)
	at java.desktop/java.awt.Component.processEvent(Unknown Source)
	at java.desktop/java.awt.Container.processEvent(Unknown Source)
	at java.desktop/java.awt.Component.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Component.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
	at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
	at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.Container.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Window.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.Component.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.EventQueue.access$500(Unknown Source)
	at java.desktop/java.awt.EventQueue$3.run(Unknown Source)
	at java.desktop/java.awt.EventQueue$3.run(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
	at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.desktop/java.awt.EventQueue.dispatchEvent(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.run(Unknown Source)

[Don-vip]

Closed as duplicate of #18082.
Java 9 is no longer supported, please switch either to a LTS version of Java (8 or 11) or to the latest stable version (12 right now).