InvalidPathException: Malformed input or input contains unmappable characters

[ccezali@…]

What steps will reproduce the problem?

1. open a map file
2. go up folder
3. open document folder

What is the expected result?

open document directory

What happens instead?

not open the directory instead open bug report pop up

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

Revision:15390
Is-Local-Build:true
Build-Date:2019-10-22 13:26:44

Identification: JOSM/1.5 (15390 SVN en) Linux Ubuntu 18.04.3 LTS
Memory Usage: 172 MB / 954 MB (31 MB allocated, but free)
Java version: 11.0.4+11-post-Ubuntu-1ubuntu218.04.3, Ubuntu, OpenJDK 64-Bit Server VM
Screen: :0.0 1600x900
Maximum Screen Size: 1600x900
VM arguments: [-Duser.home=${HOME}]

Last errors/warnings:
- W: No configuration settings found.  Using hardcoded default values for all pools.
- E: Handled by bug report queue: java.nio.file.InvalidPathException: Malformed input or input contains unmappable characters: /home/<user.name>/Documents/k��z��lagac evler.ods
- E: Handled by bug report queue: java.nio.file.InvalidPathException: Malformed input or input contains unmappable characters: /home/<user.name>/Documents/k��z��lagac evler.ods


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

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: Basic L&F File Loading Thread (71)
java.nio.file.InvalidPathException: Malformed input or input contains unmappable characters: /home/ege/Documents/k��z��lagac evler.ods
	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:280)
	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$FilesLoader.run0(BasicDirectoryModel.java:290)
	at java.desktop/javax.swing.plaf.basic.BasicDirectoryModel$FilesLoader.run(BasicDirectoryModel.java:279)
	at java.base/java.lang.Thread.run(Thread.java:834)

[ccezali@…]

screen shot

[maarten]

What filename does the file /home/ege/Documents/k��z��lagac evler.ods have exactly? (probably special ascii characters but as you can see they get replaced by diamonds with question marks).
I'm guessing Kızılagac evle.ods (turkish i) but I did not get the error.

You're not using the latest version of JOSM. Can you try the latest version and see if the error occurs then too?

[Don-vip]

Closed as duplicate of #14596.
This is usually caused by a bad locale configuration. Check locale and LC_ALL configuration on your system, and #14596 on how to fix the issue.