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

[bagage]

What steps will reproduce the problem?

1. Open JOSM with "LANG=C josm"
2. Click "Open file" icon on top left

What is the expected result?

File chooser is opened and I can select a .*osm file.

What happens instead?

An InvalidPathException is thrown because I've got a file named "Capture d'écran de 2017-03-28 20-05-01.png"

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

Note: running JOSM with "LANG=C.UTF-8 josm" solves the problem. Though, it could be cool if the error could be silently ignored/handled?

Build-Date:2017-03-30 17:49:38
Revision:11772
Is-Local-Build:true

Identification: JOSM/1.5 (11772 SVN en) Linux Debian GNU/Linux 9.0 (stretch)
Memory Usage: 349 MB / 1760 MB (95 MB allocated, but free)
Java version: 1.8.0_121-8u121-b13-4-b13, Oracle Corporation, OpenJDK 64-Bit Server VM
Screen: :0.0 1920x1080
Maximum Screen Size: 1920x1080
Java package: openjdk-8-jre:amd64-8u121-b13-4
Java ATK Wrapper package: libatk-wrapper-java:all-0.33.3-13

Plugins:
+ PicLayer (33148)
+ buildings_tools (33004)
+ conflation (0.5.2)
+ jts (32699)
+ rex (26)
+ todo (30000)
+ utilsplugin2 (33182)

Last errors/warnings:
- W: No configuration settings found.  Using hardcoded default values for all pools.
- W: Cannot start IPv4 remotecontrol server on port 8111: Address already in use (Bind failed)
- W: Cannot start IPv6 remotecontrol server on port 8111: Address already in use (Bind failed)
- W: Cannot start IPv4 remotecontrol https server on port 8112: Address already in use (Bind failed)
- W: Cannot start IPv6 remotecontrol https server on port 8112: Address already in use (Bind failed)
- E: Handled by bug report queue: java.nio.file.InvalidPathException: Malformed input or input contains unmappable characters: ${HOME}/Capture d'��cran de 2017-03-30 22-09-31.png
- E: Handled by bug report queue: java.nio.file.InvalidPathException: Malformed input or input contains unmappable characters: ${HOME}/Capture d'��cran de 2017-03-30 22-09-31.png
- E: Handled by bug report queue: java.nio.file.InvalidPathException: Malformed input or input contains unmappable characters: ${HOME}/Capture d'��cran de 2017-03-30 22-09-31.png
- E: Handled by bug report queue: java.nio.file.InvalidPathException: Malformed input or input contains unmappable characters: ${HOME}/Capture d'��cran de 2017-03-30 22-09-31.png
- E: Handled by bug report queue: java.nio.file.InvalidPathException: Malformed input or input contains unmappable characters: ${HOME}/Capture d'��cran de 2017-03-30 22-09-31.png


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

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: Basic L&F File Loading Thread (59)
java.nio.file.InvalidPathException: Malformed input or input contains unmappable characters: /home/gautier/Capture d'��cran de 2017-03-30 22-09-31.png
	at sun.nio.fs.UnixPath.encode(UnixPath.java:147)
	at sun.nio.fs.UnixPath.<init>(UnixPath.java:71)
	at sun.nio.fs.UnixFileSystem.getPath(UnixFileSystem.java:281)
	at java.nio.file.Paths.get(Paths.java:84)
	at sun.awt.shell.ShellFolder.getShellFolder(ShellFolder.java:247)
	at javax.swing.filechooser.FileSystemView.getFiles(FileSystemView.java:490)
	at javax.swing.plaf.basic.BasicDirectoryModel$LoadFilesThread.run0(BasicDirectoryModel.java:239)
	at javax.swing.plaf.basic.BasicDirectoryModel$LoadFilesThread.run(BasicDirectoryModel.java:228)