id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
19687	JOSM crashes at startup	anonymous	team	"==== What steps will reproduce the problem?
1. 
2. 
3. 

==== 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: 2020-07-30 12:44:04 +0200 (Thu, 30 Jul 2020)
Revision:16812
Build-Date:2020-07-31 01:30:49
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (16812 de) Linux Ubuntu 20.04.1 LTS
Memory Usage: 680 MB / 7968 MB (581 MB allocated, but free)
Java version: 12.0.2+10, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Look and Feel: com.sun.java.swing.plaf.gtk.GTKLookAndFeel
Screen: :0.0 1920x1080 (scaling 1.0x1.0), :0.1 1920x1080 (scaling 1.0x1.0)
Maximum Screen Size: 1920x1080
Best cursor sizes: 16x16 -> 16x16, 32x32 -> 32x32
libcommons-logging-java: libcommons-logging-java:-
fonts-noto: fonts-noto:-

Plugins:
+ OpeningHoursEditor
+ pt_assistant
+ tageditor
+ turnlanes
+ turnlanes-tagging

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

Last errors/warnings:
- E: Handled by bug report queue: org.openstreetmap.josm.tools.JosmRuntimeException: java.util.concurrent.ExecutionException: java.lang.IllegalArgumentException: Cannot modify the id counter backwards. Ursache: java.util.concurrent.ExecutionException: java.lang.IllegalArgumentException: Cannot modify the id counter backwards. Ursache: java.lang.IllegalArgumentException: Cannot modify the id counter backwards


=== 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.IllegalArgumentException: Cannot modify the id counter backwards
	at org.openstreetmap.josm.spi.lifecycle.Lifecycle.initialize(Lifecycle.java:89)
	at org.openstreetmap.josm.gui.MainApplication.mainJOSM(MainApplication.java:915)
	at org.openstreetmap.josm.gui.MainApplication$3.processArguments(MainApplication.java:276)
	at org.openstreetmap.josm.gui.MainApplication.main(MainApplication.java:713)
Caused by: java.util.concurrent.ExecutionException: java.lang.IllegalArgumentException: Cannot modify the id counter backwards
	at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
	at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191)
	at org.openstreetmap.josm.spi.lifecycle.Lifecycle.initialize(Lifecycle.java:78)
	... 3 more
Caused by: java.lang.IllegalArgumentException: Cannot modify the id counter backwards
	at org.openstreetmap.josm.data.osm.UniqueIdGenerator.advanceUniqueId(UniqueIdGenerator.java:38)
	at org.openstreetmap.josm.io.AbstractReader.buildPrimitive(AbstractReader.java:627)
	at org.openstreetmap.josm.io.AbstractReader.addNode(AbstractReader.java:638)
	at org.openstreetmap.josm.io.AbstractReader.parseNode(AbstractReader.java:680)
	at org.openstreetmap.josm.io.OsmReader.parseNode(OsmReader.java:230)
	at org.openstreetmap.josm.io.OsmReader.parseOsm(OsmReader.java:169)
	at org.openstreetmap.josm.io.OsmReader.parseRoot(OsmReader.java:135)
	at org.openstreetmap.josm.io.OsmReader.parse(OsmReader.java:121)
	at org.openstreetmap.josm.io.OsmReader.lambda$doParseDataSet$0(OsmReader.java:491)
	at org.openstreetmap.josm.io.AbstractReader.doParseDataSet(AbstractReader.java:298)
	at org.openstreetmap.josm.io.OsmReader.doParseDataSet(OsmReader.java:488)
	at org.openstreetmap.josm.io.OsmReader.parseDataSet(OsmReader.java:538)
	at org.openstreetmap.josm.io.OsmReader.parseDataSet(OsmReader.java:521)
	at org.openstreetmap.josm.tools.Territories.initializeInternalData(Territories.java:137)
	at org.openstreetmap.josm.tools.Territories.initialize(Territories.java:123)
	at org.openstreetmap.josm.gui.MainInitialization.lambda$parallelInitializationTasks$6(MainInitialization.java:114)
	at org.openstreetmap.josm.spi.lifecycle.InitializationTask.call(InitializationTask.java:33)
	at org.openstreetmap.josm.spi.lifecycle.InitializationTask.call(InitializationTask.java:11)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.lang.Thread.run(Thread.java:835)
}}}
"	defect	closed	normal		Core		duplicate	template_report