InvalidPathException when clicking "Open file" due to a special filename

[anonymous]

What steps will reproduce the problem?

1. Open JOSM
2. That's it.

What is the expected result?

What happens instead?

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

Running Ubuntu 22.04 up to date at this very moment. I just got the error message asking me to fill in a bug report because my JOSM version is the latest. I have no knowledge whatsoever of how nor why did this happen. In other words, I know there was an error because JOSM told me so, I haven't got a clue besides this automatic message I got.

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2023-07-31 18:33:06 +0200 (Mon, 31 Jul 2023)
Revision:18789
Build-Date:2023-08-01 01:30:56
URL:https://josm.openstreetmap.de/svn/trunk

Identification: JOSM/1.5 (18789 en) Linux Ubuntu 22.04.3 LTS
Memory Usage: 1208 MB / 16056 MB (1007 MB allocated, but free)
Java version: 11.0.16+8-post-Ubuntu-0ubuntu120.04, Ubuntu, OpenJDK 64-Bit Server VM
Look and Feel: javax.swing.plaf.metal.MetalLookAndFeel
Screen: :0.0 1920×1080 (scaling 1.00×1.00)
Maximum Screen Size: 1920×1080
Best cursor sizes: 16×16→16×16, 32×32→32×32
Environment variable LANG: fr_CH.UTF-8
System property file.encoding: ANSI_X3.4-1968
System property sun.jnu.encoding: ANSI_X3.4-1968
Locale info: en_US
Numbers with default locale: 1234567890 -> 1234567890
Desktop environment: ubuntu:GNOME
VM arguments: [-Duser.home=${HOME}]

Last errors/warnings:
- 00027.145 E: Handled by bug report queue: java.nio.file.InvalidPathException: Malformed input or input contains unmappable characters: /home/<user.name>/T��l��chargements
- 00027.149 E: Handled by bug report queue: java.nio.file.InvalidPathException: Malformed input or input contains unmappable characters: /home/<user.name>/T��l��chargements
- 00027.151 E: Handled by bug report queue: java.nio.file.InvalidPathException: Malformed input or input contains unmappable characters: /home/<user.name>/T��l��chargements
- 00027.156 E: Handled by bug report queue: java.nio.file.InvalidPathException: Malformed input or input contains unmappable characters: /home/<user.name>/T��l��chargements



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

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: Basic L&F File Loading Thread (57)
java.nio.file.InvalidPathException: Malformed input or input contains unmappable characters: /home/aexis/T��l��chargements
	at java.base/sun.nio.fs.UnixPath.encode(UnixPath.java:145)
	at java.base/sun.nio.fs.UnixPath.<init>(UnixPath.java:69)
	at java.base/sun.nio.fs.UnixFileSystem.getPath(UnixFileSystem.java:279)
	at java.base/java.nio.file.Path.of(Path.java:147)
	at java.base/java.nio.file.Paths.get(Paths.java:69)
	at java.desktop/sun.awt.shell.ShellFolder.getShellFolder(ShellFolder.java:247)
	at java.desktop/javax.swing.filechooser.FileSystemView.getFiles(FileSystemView.java:523)
	at java.desktop/javax.swing.plaf.basic.BasicDirectoryModel$FilesLoader.run0(BasicDirectoryModel.java:300)
	at java.desktop/javax.swing.plaf.basic.BasicDirectoryModel$FilesLoader.run(BasicDirectoryModel.java:289)
	at java.base/java.lang.Thread.run(Thread.java:829)

[taylor.smock]

Closed as duplicate of #14596.
> VM arguments: [-Duser.home=${HOME}]

You are missing vm arguments. How do you start JOSM?