id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
24030	"JOSM no longer working: Exception in thread ""main"" java.lang.UnsupportedOperationException: Setting a system-wide Policy object is not supported"	Wulf4096	team	"$ josm
Using /usr/bin/java to execute josm.
2024-11-30 18:09:53.224 INFO: Log level is at INFO (INFO, 800)
Exception in thread ""main"" java.lang.UnsupportedOperationException: Setting a system-wide Policy object is not supported
	at java.base/java.security.Policy.setPolicy(Policy.java:114)
	at org.openstreetmap.josm.gui.MainApplication.mainJOSM(MainApplication.java:790)
	at org.openstreetmap.josm.gui.MainApplication$3.processArguments(MainApplication.java:280)
	at org.openstreetmap.josm.gui.MainApplication.main(MainApplication.java:766)


$ java -version
openjdk version ""24-ea"" 2025-03-18
OpenJDK Runtime Environment (build 24-ea+26-Debian-1)
OpenJDK 64-Bit Server VM (build 24-ea+26-Debian-1, mixed mode, sharing)

Tried with JOSM 19253 and ""latest"" (today is 2024-11-30).

I assume it's related to the new java version."	defect	closed	major	24.11	Core		fixed	java24