id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
20226	Critical Error when starting JOSM	anonymous	anonymous	"==== What steps will reproduce the problem?
1. Start JOSM

==== What is the expected result?
JOSM starts

==== What happens instead?
Critical error appears

==== 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: 2020-11-21 14:56:29 +0100 (Sat, 21 Nov 2020)
Build-Date:2020-11-22 02:30:52
Revision:17329
Relative:URL: ^/trunk

Identification: JOSM/1.5 (17329 de) Windows 10 64-Bit
OS Build number: Windows 10 Enterprise 1803 (17134)
Memory Usage: 247 MB / 989 MB (145 MB allocated, but free)
Java version: 1.8.0_271-b09, Oracle Corporation, Java HotSpot(TM) Client VM
Look and Feel: com.sun.java.swing.plaf.windows.WindowsLookAndFeel
Screen: \Display0 1920x1080 (scaling 1.0x1.0), \Display1 2560x1080 (scaling 1.0x1.0)
Maximum Screen Size: 2560x1080
Best cursor sizes: 16x16 -> 32x32, 32x32 -> 32x32

Plugins:
+ BuildingGeneralization (23)
+ DirectUpload (35583)
+ HouseNumberTaggingTool (35581)
+ ImportImagePlugin
+ ImproveWay (29)
+ PicLayer (2a9aa7a)
+ ShapeTools (1240)
+ SimplifyArea (35579)
+ apache-commons (35524)
+ apache-http (35092)
+ buildings_tools
+ cadastre-fr
+ contourmerge (v0.1.6)
+ ejml (35313)
+ geotools (35169)
+ imagery_offset_db (35640)
+ jna (35092)
+ jts (35122)
+ log4j (35092)
+ mapwithai
+ measurement (35579)
+ reltoolbox (35602)
+ terracer (35579)
+ turnrestrictions (35640)
+ utilsplugin2 (35476)

Map paint styles:
+ https://josm.openstreetmap.de/josmfile?page=Styles/MapWithAI&zip=1

Last errors/warnings:
- 00024,661 E: Handled by bug report queue: java.lang.UnsupportedClassVersionError: org/openstreetmap/josm/plugins/mapwithai/MapWithAIPlugin has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0


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

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: main (1)
java.lang.UnsupportedClassVersionError: org/openstreetmap/josm/plugins/mapwithai/MapWithAIPlugin has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(Unknown Source)
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$100(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at org.openstreetmap.josm.plugins.PluginClassLoader.loadClass(PluginClassLoader.java:73)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Unknown Source)
	at org.openstreetmap.josm.plugins.PluginInformation.loadClass(PluginInformation.java:382)
	at org.openstreetmap.josm.plugins.PluginHandler.loadPlugin(PluginHandler.java:803)
	at org.openstreetmap.josm.plugins.PluginHandler.loadPlugins(PluginHandler.java:892)
	at org.openstreetmap.josm.plugins.PluginHandler.loadLatePlugins(PluginHandler.java:944)
	at org.openstreetmap.josm.gui.MainApplication.loadLatePlugins(MainApplication.java:1158)
	at org.openstreetmap.josm.gui.MainApplication.mainJOSM(MainApplication.java:922)
	at org.openstreetmap.josm.gui.MainApplication$3.processArguments(MainApplication.java:277)
	at org.openstreetmap.josm.gui.MainApplication.main(MainApplication.java:714)
}}}
"	defect	closed	normal		Plugin mapwithai	tested	invalid	template_report