NoClassDefFoundError: Could not initialize class org.openstreetmap.josm.data.cache.JCSCacheManager (OpenWebStart)

[anonymous]

What steps will reproduce the problem?

1. Start jnlp version of JOSM
2. cant connect to servers (proxy menu)
3. crash

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: 2021-08-02 19:44:04 +0200 (Mon, 02 Aug 2021)
Revision:18118
Build-Date:2021-08-02 18:26:20
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (18118 cs) Windows 10 64-Bit
OS Build number: Windows 10 Home 2009 (19043)
Memory Usage: 154 MB / 2018 MB (36 MB allocated, but free)
Java version: 11.0.10+9, AdoptOpenJDK, OpenJDK 64-Bit Server VM
Look and Feel: com.sun.java.swing.plaf.windows.WindowsLookAndFeel
Screen: \Display0 1920×1080 (scaling 1.00×1.00)
Maximum Screen Size: 1920×1080
Best cursor sizes: 16×16→32×32, 32×32→32×32
System property file.encoding: Cp1250
System property sun.jnu.encoding: Cp1250
Locale info: cs_CZ
Numbers with default locale: 1234567890 -> 1234567890
VM arguments: [-Dicedtea-web.bin.location=%UserProfile%\AppData\Local\Programs\OpenWebStart\javaws, -Djava.util.Arrays.useLegacyMergeSort=true, --add-exports=jdk.deploy/com.sun.deploy.config=ALL-UNNAMED, --add-opens=java.desktop/javax.swing.text.html=ALL-UNNAMED, --add-reads=java.naming=ALL-UNNAMED,java.desktop, --add-exports=java.base/sun.security.action=ALL-UNNAMED,java.desktop, --add-reads=java.base=ALL-UNNAMED,java.desktop, --add-exports=java.naming/com.sun.jndi.toolkit.url=ALL-UNNAMED,java.desktop, --add-opens=java.base/jdk.internal.loader=ALL-UNNAMED, --add-exports=java.desktop/com.apple.eawt=ALL-UNNAMED, --add-exports=java.desktop/sun.awt=ALL-UNNAMED,java.desktop, --add-opens=java.base/jdk.internal.ref=ALL-UNNAMED, --add-exports=java.base/sun.security.validator=ALL-UNNAMED,java.desktop, --add-exports=java.desktop/com.sun.imageio.plugins.jpeg=ALL-UNNAMED, --add-exports=java.base/sun.net.www.protocol.jar=ALL-UNNAMED,java.desktop, --add-exports=java.base/jdk.internal.util.jar=ALL-UNNAMED,java.desktop, --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED, --add-exports=java.base/com.sun.net.ssl.internal.ssl=ALL-UNNAMED,java.desktop, --add-exports=javafx.graphics/com.sun.javafx.application=ALL-UNNAMED, --add-modules=java.scripting,java.sql, --add-exports=java.desktop/sun.awt.X11=ALL-UNNAMED,java.desktop, --add-exports=java.desktop/sun.applet=ALL-UNNAMED,java.desktop,jdk.jsobject, --add-exports=java.base/sun.net.www.protocol.http=ALL-UNNAMED,java.desktop, --add-opens=java.base/java.lang=ALL-UNNAMED, --add-exports=java.base/sun.security.util=ALL-UNNAMED,java.desktop, --add-exports=java.desktop/com.sun.imageio.spi=ALL-UNNAMED, --add-reads=java.desktop=ALL-UNNAMED,java.naming, --add-opens=java.base/java.nio=ALL-UNNAMED, --add-exports=java.base/sun.security.x509=ALL-UNNAMED,java.desktop, --add-opens=java.desktop/javax.imageio.spi=ALL-UNNAMED, --add-exports=java.desktop/javax.jnlp=ALL-UNNAMED,java.desktop, --add-exports=java.base/sun.security.provider=ALL-UNNAMED,java.desktop]

Plugins:
+ FastDraw (35640)
+ OpeningHoursEditor (35640)
+ Tracer-testing (1590860163)
+ apache-commons (35524)
+ buildings_tools (35756)
+ ejml (35458)
+ geochat (35640)
+ geotools (35458)
+ jts (35458)
+ mapathoner (1.1.9)
+ markseen (14)
+ scripting (30798)
+ todo (30306)
+ utilsplugin2 (35792)

Last errors/warnings:
- 00000.776 W: extended font config - overriding 'filename.Myanmar_Text=mmrtext.ttf' with 'MMRTEXT.TTF'
- 00000.783 W: extended font config - overriding 'filename.Mongolian_Baiti=monbaiti.ttf' with 'MONBAITI.TTF'
- 00026.222 W: java.net.UnknownHostException: api.openstreetmap.org
- 00026.225 E: java.net.UnknownHostException: api.openstreetmap.org
- 00026.231 E: org.openstreetmap.josm.io.OsmTransferException: Nemohu se připojit k OSM serveru. Prosím zkontrolujte si připojení k internetu.. Přičina: java.net.UnknownHostException: api.openstreetmap.org
- 00026.902 W: java.net.UnknownHostException: josm.openstreetmap.de
- 00026.903 W: Chyba načtení zprávy dne (MOTD). Výjimka byla: java.net.UnknownHostException: josm.openstreetmap.de: java.net.UnknownHostException: josm.openstreetmap.de
- 00029.005 W: java.net.UnknownHostException: josm.openstreetmap.de
- 00029.106 W: Nepodařilo se načíst https://josm.openstreetmap.de/maps, použijte nakešovaný soubor a opakujte pokus později: java.net.UnknownHostException: josm.openstreetmap.de
- 00054.685 E: Handled by bug report queue: java.lang.NoClassDefFoundError: Could not initialize class org.openstreetmap.josm.data.cache.JCSCacheManager



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

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: AWT-EventQueue-1 (50) of JOSM
java.lang.NoClassDefFoundError: Could not initialize class org.openstreetmap.josm.data.cache.JCSCacheManager
	at org.openstreetmap.josm.gui.layer.AbstractCachedTileSourceLayer.getCache(AbstractCachedTileSourceLayer.java:118)
	at org.openstreetmap.josm.gui.layer.AbstractCachedTileSourceLayer.getTileLoaderFactory(AbstractCachedTileSourceLayer.java:105)
	at org.openstreetmap.josm.gui.bbox.JosmMapViewer.<init>(JosmMapViewer.java:148)
	at org.openstreetmap.josm.gui.bbox.SlippyMapBBoxChooser.<init>(SlippyMapBBoxChooser.java:100)
	at org.openstreetmap.josm.gui.download.SlippyMapChooser.<init>(SlippyMapChooser.java:35)
	at org.openstreetmap.josm.gui.download.DownloadDialog.buildMainPanel(DownloadDialog.java:148)
	at org.openstreetmap.josm.gui.download.DownloadDialog.<init>(DownloadDialog.java:263)
	at org.openstreetmap.josm.gui.download.DownloadDialog.<init>(DownloadDialog.java:251)
	at org.openstreetmap.josm.gui.download.DownloadDialog.getInstance(DownloadDialog.java:92)
	at org.openstreetmap.josm.actions.DownloadAction.actionPerformed(DownloadAction.java:40)
	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.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:279)
	at java.desktop/java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:297)
	at java.desktop/java.awt.Component.processMouseEvent(Component.java:6635)
	at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3342)
	at java.desktop/java.awt.Component.processEvent(Component.java:6400)
	at java.desktop/java.awt.Container.processEvent(Container.java:2263)
	at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5011)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2321)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4843)
	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:4843)
	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)

[skyper]

Similar or same as #20409.
See also #20867 for a problem with webstart and jcs.

[skyper]

Ticket #21474 has been marked as a duplicate of this ticket.

[taylor.smock]

From #21474 (it looks like last errors/warnings in this ticket may have swallowed some relevant information):

- 00383.671 E: Thread main-worker-0 raised java.lang.NoClassDefFoundError: Could not initialize class org.openstreetmap.josm.data.cache.JCSCacheManager

It looks like JCSCacheManager attempted to initialize in the worker thread, and failed.
The worker thread kind of swallows exceptions.

I'll upload a patch to this ticket so that we can force those exceptions to be raised. You will probably have to start from the command line.

[taylor.smock]

If no graphics environment OR if logging level is set to debug, print stack trace for exception. Also, show the bug report window if logging level is set to debug.

[taylor.smock]

No duplicates in > 1 year. I think this got fixed somewhere along the way.