NullPointerException on File Open Dialog

[peter@…]

What steps will reproduce the problem?

1. Open Josm
2. Open "Open File" Dialog
3. Navigate to removable drive
4. [crash]
5. Restart Josm
6. Open "Open File" Dialog
7. [crash]

What is the expected result?

Open the "Open File" Dialog

What happens instead?

The "Open File" Dialog keeps invisible but a NullPointerException is raised

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2010-08-04 01:31:57
Last Changed Author: bastiK
Revision: 3413
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2010-08-04 00:10:31 +0200 (Wed, 04 Aug 2010)
Last Changed Rev: 3413

Identification: JOSM/1.5 (3413 de)
Memory Usage: 33 MB / 245 MB (7 MB allocated, but free)
Java version: 1.6.0_20, Sun Microsystems Inc., Java HotSpot(TM) Client VM
Operating system: Windows 7

Plugin: DirectUpload (22017)
Plugin: dataimport (22542)
Plugin: editgpx (22548)
Plugin: measurement (22547)
Plugin: openstreetbugs (22548)
Plugin: plastic_laf (20000)
Plugin: remotecontrol (22479)
Plugin: reverter (22533)
Plugin: turnrestrictions (22477)
Plugin: validator (22550)

java.lang.NullPointerException
	at java.util.Arrays$ArrayList.<init>(Unknown Source)
	at java.util.Arrays.asList(Unknown Source)
	at sun.awt.shell.Win32ShellFolderManager2.isFileSystemRoot(Unknown Source)
	at sun.awt.shell.ShellFolder.isFileSystemRoot(Unknown Source)
	at javax.swing.filechooser.FileSystemView.isFileSystemRoot(Unknown Source)
	at javax.swing.filechooser.FileSystemView.getShellFolder(Unknown Source)
	at javax.swing.filechooser.FileSystemView.getFiles(Unknown Source)
	at javax.swing.plaf.basic.BasicDirectoryModel$LoadFilesThread.run0(Unknown Source)
	at javax.swing.plaf.basic.BasicDirectoryModel$LoadFilesThread.run(Unknown Source)

[bastiK]

This seems to be a Java bug. Not much, the JOSM developers can do about it. Strange that JOSM remembers the path although you did not click OK button.