Error when loading WMS from file

[xxlbiker]

Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2010-06-11 01:31:34
Last Changed Author: stoecker
Revision: 3329
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2010-06-10 09:53:42 +0200 (Thu, 10 Jun 2010)
Last Changed Rev: 3329

Identification: JOSM/1.5 (3329 de)
Memory Usage: 494 MB / 494 MB (119 MB allocated, but free)
Java version: 1.6.0_18, Sun Microsystems Inc., Java HotSpot(TM) Client VM
Operating system: Windows Vista
Dataset consistency test: No problems found

Plugin: openstreetbugs (21706)
Plugin: remotecontrol (21706)
Plugin: validator (22004)
Plugin: wmsplugin (22008)

java.lang.NullPointerException

at wmsplugin.GeorefImage.paint(GeorefImage.java:63)
at wmsplugin.WMSLayer.paint(WMSLayer.java:196)
at org.openstreetmap.josm.gui.MapView.paint(MapView.java:516)
at javax.swing.JComponent.paintChildren(Unknown Source)
at javax.swing.JSplitPane.paintChildren(Unknown Source)
at javax.swing.JComponent.paint(Unknown Source)
at javax.swing.JComponent.paintToOffscreen(Unknown Source)
at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(Unknown Source)
at javax.swing.RepaintManager$PaintManager.paint(Unknown Source)
at javax.swing.RepaintManager.paint(Unknown Source)
at javax.swing.JComponent._paintImmediately(Unknown Source)
at javax.swing.JComponent.paintImmediately(Unknown Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.paintDirtyRegions(Unknown Source)
at javax.swing.RepaintManager.seqPaintDirtyRegions(Unknown Source)
at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(Unknown Source)
at java.awt.event.InvocationEvent.dispatch(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]

Ticket #5230 has been marked as a duplicate of this ticket.

[xxlbiker]

Additional Info:
Happens w/ Yahoo Aerial as well as PCN Italy - haven't tried others yet.
first time you try to load the file, you simply get an error message "Failed loading..." but you can continue.
2nd lime Josm halts and suggest to remove the WMS plugin. When declining, JOSM hangs - i.e. stays in and endless loop of Error Message and suggestion to remove Plugin. Need to kill JOSM from system console/Task Manager.
happens on all PCs I have access to regardless of Vista or XP OS.
All the more, a nuisance since PCN Italia blocks IP numbers after (very low) download limit is exceeded. I just want to work on a small area in high detail but JOSM reloads WMS every time I pan the map. Set wms cache size and sticky time to very high numbers, still JOSM seems to disregard these settings.

[Am909]

Dirk recently wrote: "To get a caching over sessions, you need to use the bookmark function to bookmark a specific zoomlevel. Otherwise the cache will be invalidated each time you open a new WMS layer."

This seems to work. Zoom to the desired resolution. Create the WMS layer. Right-click on the WMS layer in the Layers dialog and choose Set WMS bookmark. You will then see a new line in the WMS menu with the original name of the source, followed by "#PPD=" and a long number. The next time you start JOSM, if you select that bookmark from the WMS menu, it will show you tiles from the cache (that have not expired). I just confirmed that this works with an area I worked on a couple days ago. The tiles along the road I was editing appear immediately (from cache) while others that I did not download last time take a while to fetch from the server.

I have cache.wmsplugin.expire set to 2419200 (28 days) and cache.wmsplugin.maxsize set to 5000 (5000 MB).

[bastiK]

Closed as duplicate of #4822.