id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
24527	Opening a .fit file doesn't work.	anonymous	team	"==== What steps will reproduce the problem?
1. Open JOSM
2. Install the extension ""FIT"" Version 36438
3. Open one of my .fit files which makes JOSM report this error

==== What is the expected result?
The track is opened and shown

==== What happens instead?
JOSM reported an error.

==== Please provide any additional information below. Attach a screenshot if possible.

{{{
Revision:19444
Is-Local-Build:true
Build-Date:2025-10-15 14:23:11

Identification: JOSM/1.5 (19444 SVN de) Windows 11 64-Bit
OS Build number: Windows 10 Pro 25H2 (26200)
Memory Usage: 432 MB / 23936 MB (151 MB allocated, but free)
Java version: 21.0.8+9-LTS, Azul Systems, Inc., OpenJDK 64-Bit Server VM
Look and Feel: com.sun.java.swing.plaf.windows.WindowsLookAndFeel
Screen: \Display0 1920x1200x32bpp@59Hz (scaling 1.00×1.00)
Maximum Screen Size: 1920×1200
Best cursor sizes: 16×16→32×32, 32×32→32×32
System property file.encoding: UTF-8
System property sun.jnu.encoding: Cp1252
Locale info: de_DE
Numbers with default locale: 1234567890 -> 1234567890
VM arguments: [-Djpackage.app-version=1.5.19444, -XX:MaxRAMPercentage=75.0, --add-modules=java.scripting,java.sql,javafx.controls,javafx.media,javafx.swing,javafx.web, --add-exports=java.base/sun.security.action=ALL-UNNAMED, --add-exports=java.desktop/com.sun.imageio.plugins.jpeg=ALL-UNNAMED, --add-exports=java.desktop/com.sun.imageio.spi=ALL-UNNAMED, --add-opens=java.base/java.lang=ALL-UNNAMED, --add-opens=java.base/java.nio=ALL-UNNAMED, --add-opens=java.base/jdk.internal.loader=ALL-UNNAMED, --add-opens=java.base/jdk.internal.ref=ALL-UNNAMED, --add-opens=java.desktop/javax.imageio.spi=ALL-UNNAMED, --add-opens=java.desktop/javax.swing.text.html=ALL-UNNAMED, --add-opens=java.prefs/java.util.prefs=ALL-UNNAMED, -Djpackage.app-path=%UserProfile%\AppData\Local\JOSM\JOSM.exe]

Plugins:
+ FIT (36438)
+ austriaaddresshelper (100)

Last errors/warnings:
- 00000.255 W: extended font config - overriding 'filename.Malgun_Gothic=malgun.ttf' with 'MALGUN.TTF'
- 00000.257 W: extended font config - overriding 'filename.Myanmar_Text=mmrtext.ttf' with 'MMRTEXT.TTF'
- 00000.257 W: extended font config - overriding 'filename.Mongolian_Baiti=monbaiti.ttf' with 'MONBAITI.TTF'
- 00000.544 E: java.security.KeyStoreException: Windows-ROOT not found. Ursache: java.security.NoSuchAlgorithmException: Windows-ROOT KeyStore not available
- 00001.008 W: Erweiterungen aktualisieren - Sie haben JOSM aktualisiert. Zur Vermeidung von Problemen sollten die Erweiterungen ebenfalls aktualisiert werden.  Erweiterungen jetzt aktualisieren?
- 00145.917 E: Handled by bug report queue: java.lang.NullPointerException: Cannot invoke ""org.openstreetmap.josm.plugins.fit.lib.records.internal.FitDefinitionMessage.globalMessageNumber()"" because ""definitionMessage"" is null
- 00463.300 E: Handled by bug report queue: java.lang.NullPointerException: Cannot invoke ""org.openstreetmap.josm.plugins.fit.lib.records.internal.FitDefinitionMessage.globalMessageNumber()"" because ""definitionMessage"" is null



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

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: main-worker-0 (55) of main
java.lang.NullPointerException: Cannot invoke ""org.openstreetmap.josm.plugins.fit.lib.records.internal.FitDefinitionMessage.globalMessageNumber()"" because ""definitionMessage"" is null
	at org.openstreetmap.josm.plugins.fit.lib.global.Global.parseData(Global.java:82)
	at org.openstreetmap.josm.plugins.fit.lib.FitReader.readNextRecord(FitReader.java:299)
	at org.openstreetmap.josm.plugins.fit.lib.FitReader.parseFitRecordHeader(FitReader.java:130)
	at org.openstreetmap.josm.plugins.fit.lib.FitReader.parseData(FitReader.java:86)
	at org.openstreetmap.josm.plugins.fit.lib.FitReader.read(FitReader.java:61)
	at org.openstreetmap.josm.plugins.fit.FitPlugin$FitImporter.importData(FitPlugin.java:60)
	at org.openstreetmap.josm.gui.io.importexport.FileImporter.importDataHandleExceptions(FileImporter.java:103)
	at org.openstreetmap.josm.actions.OpenFileAction$OpenFileTask.importData(OpenFileAction.java:426)
	at org.openstreetmap.josm.actions.OpenFileAction$OpenFileTask.realRun(OpenFileAction.java:354)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.doRealRun(PleaseWaitRunnable.java:94)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:142)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.base/java.lang.Thread.run(Unknown Source)
}}}
"	defect	new	normal		Core			template_report