Bug

[anonymous]

What steps will reproduce the problem?

What is the expected result?

What happens instead?

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 fr) Windows 10 64-Bit
OS Build number: Windows 10 Enterprise 1809 (17763)
Memory Usage: 1973 MB / 1973 MB (772 MB allocated, but free)
Java version: 1.8.0_271-b09, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Look and Feel: com.sun.java.swing.plaf.windows.WindowsLookAndFeel
Screen: \Display0 1920x1080 (scaling 1.0x1.0), \Display1 1920x1200 (scaling 1.0x1.0), \Display2 1920x1080 (scaling 1.0x1.0)
Maximum Screen Size: 1920x1200
Best cursor sizes: 16x16 -> 32x32, 32x32 -> 32x32
Dataset consistency test: No problems found

Plugins:
+ imagery_offset_db (35640)
+ pbf (35640)
+ turnrestrictions (35640)

Last errors/warnings:
- 06462,492 W: GeoJSON: Failed to export multipolygon 4 489 073
- 06462,493 W: org.openstreetmap.josm.data.osm.MultipolygonBuilder$JoinedPolygonCreationException: Chaque nœud doit être relié à exactement 2 chemins.
- 06462,636 W: GeoJSON: Failed to export multipolygon 4 482 872
- 06462,636 W: org.openstreetmap.josm.data.osm.MultipolygonBuilder$JoinedPolygonCreationException: Chaque nœud doit être relié à exactement 2 chemins.
- 06462,702 W: GeoJSON: Failed to export multipolygon 10 513 007
- 06462,702 W: org.openstreetmap.josm.data.osm.MultipolygonBuilder$JoinedPolygonCreationException: Chaque nœud doit être relié à exactement 2 chemins.
- 06462,718 W: GeoJSON: Failed to export multipolygon 5 933 853
- 06462,718 W: org.openstreetmap.josm.data.osm.MultipolygonBuilder$JoinedPolygonCreationException: Chaque nœud doit être relié à exactement 2 chemins.
- 06685,519 E: Handled by bug report queue: java.lang.OutOfMemoryError: GC overhead limit exceeded
- 12584,989 E: Handled by bug report queue: javax.json.JsonException: Cannot auto-detect encoding, not enough chars


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

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: main-worker-0 (77) of main
javax.json.JsonException: Cannot auto-detect encoding, not enough chars
	at org.glassfish.json.UnicodeDetectingInputStream.detectEncoding(UnicodeDetectingInputStream.java:130)
	at org.glassfish.json.UnicodeDetectingInputStream.<init>(UnicodeDetectingInputStream.java:75)
	at org.glassfish.json.JsonParserImpl.<init>(JsonParserImpl.java:95)
	at org.glassfish.json.JsonProviderImpl.createParser(JsonProviderImpl.java:88)
	at javax.json.Json.createParser(Json.java:109)
	at org.openstreetmap.josm.io.GeoJSONReader.doParseDataSet(GeoJSONReader.java:407)
	at org.openstreetmap.josm.io.GeoJSONReader.parseDataSet(GeoJSONReader.java:473)
	at org.openstreetmap.josm.gui.io.importexport.GeoJSONImporter.importData(GeoJSONImporter.java:51)
	at org.openstreetmap.josm.gui.io.importexport.FileImporter.importDataHandleExceptions(FileImporter.java:98)
	at org.openstreetmap.josm.actions.OpenFileAction$OpenFileTask.importData(OpenFileAction.java:370)
	at org.openstreetmap.josm.actions.OpenFileAction$OpenFileTask.realRun(OpenFileAction.java:320)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.doRealRun(PleaseWaitRunnable.java:94)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:142)
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)

[skyper]

Closed as duplicate of #20239.
Is it possible to attach a small example file to #20239? Thanks