NPE on opening files on Windows

[roman@…]

Path: trunk
URL: http://josm.openstreetmap.de/svn/trunk
Repository Root: http://josm.openstreetmap.de/svn
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Revision: 925
Node Kind: directory
Last Changed Author: ulfl
Last Changed Rev: 925
Last Changed Date: 2008-09-04 01:24:57 +0200 (Thu, 04 Sep 2008)

java.lang.NullPointerException

at javax.swing.ImageIcon.<init>(Unknown Source)
at javax.swing.ImageIcon.<init>(Unknown Source)
at sun.swing.WindowsPlacesBar.<init>(Unknown Source)
at com.sun.java.swing.plaf.windows.WindowsFileChooserUI.updateUseShellFolder(Unknown Source)
at com.sun.java.swing.plaf.windows.WindowsFileChooserUI.installComponents(Unknown Source)
at javax.swing.plaf.basic.BasicFileChooserUI.installUI(Unknown Source)
at com.sun.java.swing.plaf.windows.WindowsFileChooserUI.installUI(Unknown Source)
at javax.swing.JComponent.setUI(Unknown Source)
at javax.swing.JFileChooser.updateUI(Unknown Source)
at javax.swing.JFileChooser.setup(Unknown Source)
at javax.swing.JFileChooser.<init>(Unknown Source)
at javax.swing.JFileChooser.<init>(Unknown Source)
at org.openstreetmap.josm.actions.DiskAccessAction.createAndOpenFileChooser(DiskAccessAction.java:26)
at org.openstreetmap.josm.actions.OpenAction.actionPerformed(OpenAction.java:44)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.AbstractButton.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(Unknown Source)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

[anonymous]

Same as #1458 and #1278

As long as nobody can make this reproducable, it cannot be fixed.

[framm]

It seems that this is a common problem with Java under Windows. Windows allows you to change the icons ofr "My Computer", "Networked Drive", "Desktop" etc.; if you do this, and later remove the image source, you have Windows items pointing to invalid icons, which causes Java to hit a NPE.

It is very likely not a JOSM bug. Is it possible that those reporting this problems have somehow changed their icons or downloaded some fancy "styles" for the Windows desktop?

The following workaround is suggested on the web:

1. Right click on desktop.
2. Click on Properties from the pop-up menu.
3. Under the desktop tab select customize desktop button List of desktop items will be displayed.
4. Set default icons for all system icons in the list.

Could those reporting these bugs perhaps check whether this helps.

[anonymous]

It worked, it worked, it worked

Tnx a lot

greetings

RF