memory problem not saved

[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: 2020-06-30 19:13:42 +0200 (Tue, 30 Jun 2020)
Build-Date:2020-07-01 01:30:51
Revision:16731
Relative:URL: ^/trunk

Identification: JOSM/1.5 (16731 en) Windows 8 64-Bit
OS Build number: Windows 8 Pro (9200)
Memory Usage: 101 MB / 247 MB (30 MB allocated, but free)
Java version: 1.8.0_261-b12, Oracle Corporation, Java HotSpot(TM) Client VM
Look and Feel: com.sun.java.swing.plaf.windows.WindowsLookAndFeel
Screen: \Display0 1366x768 (scaling 1.0x1.0)
Maximum Screen Size: 1366x768
Best cursor sizes: 16x16 -> 32x32, 32x32 -> 32x32

Last errors/warnings:
- W: java.nio.file.FileSystemException: C:\Users\<user.name>~1.DES\AppData\Local\Temp\josm_exec_powershell_1453230401358710917.txt: The process cannot access the file because it is being used by another process.
- W: Unable to request certificate of https://grca.nat.gov.tw
- 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 (44) 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:355)
	at org.openstreetmap.josm.io.GeoJSONReader.parseDataSet(GeoJSONReader.java:375)
	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)

[simon04]

Closed as duplicate of #18824.