Freezes while loading

[anonymous]

What steps will reproduce the problem?

1. launching the program via terminal: GDK_SCALE=2 java -jar /usr/share/josm-latest/josm-latest.jar

What is the expected result?

Launching JOSM

What happens instead?

Freezes while loading image preferences

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

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2020-03-02 00:54:04 +0100 (Mon, 02 Mar 2020)
Revision:15994
Build-Date:2020-03-02 02:31:01
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (15994 en_GB) Linux Ubuntu 19.10
Memory Usage: 358 MB / 1968 MB (212 MB allocated, but free)
Java version: 11.0.6+10-post-Ubuntu-1ubuntu119.10.1, Ubuntu, OpenJDK 64-Bit Server VM
Screen: :0.0 3200x1800
Maximum Screen Size: 3200x1800
Java package: openjdk-11-jre:amd64-11.0.6+10-1ubuntu1~19.10.1
Java ATK Wrapper package: libatk-wrapper-java:all-0.35.0-3
fonts-noto: fonts-noto:-

Plugins:
+ FastDraw
+ ImportImagePlugin
+ apache-commons
+ buildings_tools
+ ejml
+ geotools
+ jaxb (35092)
+ jts
+ log4j (35092)
+ measurement
+ opendata
+ utilsplugin2

Last errors/warnings:
- W: Failed to parse external taginfo data at https://josm.openstreetmap.de/remote/geofabrik-index-v1-nogeom.json: Invalid token=EOF at (line no=6119, column no=2252, offset=359085). Expected tokens are: [CURLYOPEN, SQUAREOPEN, STRING, NUMBER, TRUE, FALSE, NULL]
- E: Handled by bug report queue: org.openstreetmap.josm.tools.JosmRuntimeException: java.util.concurrent.ExecutionException: java.lang.NoClassDefFoundError: ch/poole/openinghoursparser/ParseException. Cause: java.util.concurrent.ExecutionException: java.lang.NoClassDefFoundError: ch/poole/openinghoursparser/ParseException. Cause: java.lang.NoClassDefFoundError: ch/poole/openinghoursparser/ParseException. Cause: java.lang.ClassNotFoundException: ch.poole.openinghoursparser.ParseException


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

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: main (1)
org.openstreetmap.josm.tools.JosmRuntimeException: java.util.concurrent.ExecutionException: java.lang.NoClassDefFoundError: ch/poole/openinghoursparser/ParseException
	at org.openstreetmap.josm.spi.lifecycle.Lifecycle.initialize(Lifecycle.java:89)
	at org.openstreetmap.josm.gui.MainApplication.mainJOSM(MainApplication.java:903)
	at org.openstreetmap.josm.gui.MainApplication$3.processArguments(MainApplication.java:276)
	at org.openstreetmap.josm.gui.MainApplication.main(MainApplication.java:703)
Caused by: java.util.concurrent.ExecutionException: java.lang.NoClassDefFoundError: ch/poole/openinghoursparser/ParseException
	at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
	at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191)
	at org.openstreetmap.josm.spi.lifecycle.Lifecycle.initialize(Lifecycle.java:78)
	... 3 more
Caused by: java.lang.NoClassDefFoundError: ch/poole/openinghoursparser/ParseException
	at java.base/java.lang.Class.getDeclaredConstructors0(Native Method)
	at java.base/java.lang.Class.privateGetDeclaredConstructors(Class.java:3137)
	at java.base/java.lang.Class.getConstructor0(Class.java:3342)
	at java.base/java.lang.Class.getConstructor(Class.java:2151)
	at org.openstreetmap.josm.data.validation.OsmValidator.addTest(OsmValidator.java:161)
	at org.openstreetmap.josm.data.validation.OsmValidator.<clinit>(OsmValidator.java:186)
	at org.openstreetmap.josm.spi.lifecycle.InitializationTask.call(InitializationTask.java:33)
	at org.openstreetmap.josm.spi.lifecycle.InitializationTask.call(InitializationTask.java:11)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.lang.ClassNotFoundException: ch.poole.openinghoursparser.ParseException
	at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:581)
	at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:178)
	at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)
	... 12 more

[anonymous]

Screenshot of the lines where it froze

[skyper]

Closed as duplicate of #18833.