JOSM exception when trying to insert password from KeePass 2

[muh]

What steps will reproduce the problem?

1. Open JOSM, make some changes to be uploaded.
2. The dialog for entering your credentials opens.
3. Make KeePass 2 copy the password to the clipboard. Try to paste into the pw field (Ctrl + V).

What is the expected result
The password entered into the pw field.

What happens instead?
This exception. After copying the pw into a text-editor and re-copying it to the clipboard and then to JOSM everything works fine. I suppose it's related to the way KeePass 2 (based on Mono) copies the pw to the clipboard.

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

KeePass 2.16, Linux Mint Debian (= Debian testing), kernel 3.0.0-1-amd64

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2012-03-07 02:32:17
Last Changed Author: stoecker
Revision: 5047
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2012-03-06 10:30:34 +0100 (Tue, 06 Mar 2012)
Last Changed Rev: 5047

Identification: JOSM/1.5 (5047 en)
Memory Usage: 295 MB / 860 MB (144 MB allocated, but free)
Java version: 1.6.0_23, Sun Microsystems Inc., OpenJDK 64-Bit Server VM
Operating system: Linux
Dataset consistency test: No problems found


java.lang.NullPointerException: Failed to retrieve atom name.
	at sun.awt.X11.XlibWrapper.XGetAtomName(Native Method)
	at sun.awt.X11.XAtom.getName(XAtom.java:186)
	at sun.awt.X11.XDataTransferer.getTargetNameForAtom(XDataTransferer.java:141)
	at sun.awt.X11.XDataTransferer.getNativeForFormat(XDataTransferer.java:130)
	at sun.awt.datatransfer.DataTransferer.getFlavorsForFormats(DataTransferer.java:785)
	at sun.awt.datatransfer.ClipboardTransferable.<init>(ClipboardTransferable.java:89)
	at sun.awt.X11.XClipboard.getContents(XClipboard.java:101)
	at javax.swing.TransferHandler$TransferAction.actionPerformedImpl(TransferHandler.java:1701)
	at javax.swing.TransferHandler$TransferAction.access$700(TransferHandler.java:1638)
	at javax.swing.TransferHandler$TransferAction$1.run(TransferHandler.java:1661)
	at javax.swing.TransferHandler$TransferAction$1.run(TransferHandler.java:1659)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:105)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:116)
	at javax.swing.TransferHandler$TransferAction$2.run(TransferHandler.java:1676)
	at javax.swing.TransferHandler$TransferAction$2.run(TransferHandler.java:1674)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:105)
	at javax.swing.TransferHandler$TransferAction.actionPerformed(TransferHandler.java:1673)
	at javax.swing.text.JTextComponent.invokeAction(JTextComponent.java:1499)
	at javax.swing.text.JTextComponent.paste(JTextComponent.java:1477)
	at javax.swing.text.DefaultEditorKit$PasteAction.actionPerformed(DefaultEditorKit.java:1354)
	at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1660)
	at javax.swing.JComponent.processKeyBinding(JComponent.java:2851)
	at javax.swing.JComponent.processKeyBindings(JComponent.java:2886)
	at javax.swing.JComponent.processKeyEvent(JComponent.java:2814)
	at java.awt.Component.processEvent(Component.java:6045)
	at java.awt.Container.processEvent(Container.java:2045)
	at java.awt.Component.dispatchEventImpl(Component.java:4629)
	at java.awt.Container.dispatchEventImpl(Container.java:2103)
	at java.awt.Component.dispatchEvent(Component.java:4455)
	at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1881)
	at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:759)
	at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1035)
	at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:902)
	at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:724)
	at java.awt.Component.dispatchEventImpl(Component.java:4499)
	at java.awt.Container.dispatchEventImpl(Container.java:2103)
	at java.awt.Window.dispatchEventImpl(Window.java:2517)
	at java.awt.Component.dispatchEvent(Component.java:4455)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:649)
	at java.awt.EventQueue.access$000(EventQueue.java:96)
	at java.awt.EventQueue$1.run(EventQueue.java:608)
	at java.awt.EventQueue$1.run(EventQueue.java:606)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:105)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:116)
	at java.awt.EventQueue$2.run(EventQueue.java:622)
	at java.awt.EventQueue$2.run(EventQueue.java:620)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:105)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:619)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:194)
	at java.awt.Dialog$1.run(Dialog.java:1072)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:226)
	at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:647)
	at java.awt.EventQueue.access$000(EventQueue.java:96)
	at java.awt.EventQueue$1.run(EventQueue.java:608)
	at java.awt.EventQueue$1.run(EventQueue.java:606)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:105)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:116)
	at java.awt.EventQueue$2.run(EventQueue.java:622)
	at java.awt.EventQueue$2.run(EventQueue.java:620)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:105)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:619)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:194)
	at java.awt.Dialog$1.run(Dialog.java:1072)
	at java.awt.Dialog$3.run(Dialog.java:1126)
	at java.security.AccessController.doPrivileged(Native Method)
...<snip>...

[Don-vip]

Closed as duplicate of #8404.