Null pointer exception in WMS plugin

[anonymous]

I tried to download tiles with WMS and ... crash, null pointer exception.
I think I probably know the cause - I transfered settings from another computer and wms cache directory is not present (and cannot be created, as I do not have write rights to create directory under same path as on that another computer)

If cache dir does not exist and could not be created, I think WMS plugin should handle that more gracefully.

Manifest-Version: 1.0
Ant-Version: Apache Ant 1.7.0
Created-By: 11.2-b01 (Sun Microsystems Inc.)
Main-class: JOSM
Main-Version: 1486 SVN
Main-Date: 2009-03-12T11:00:59.693374Z

Java version: 1.6.0_12
Plugins: measurement;multipoly;openstreetbugs;osmarender;remotecontrol;terracer2;utilsplugin;validator;wmsplugin
Plugin measurement Version: 14015
Plugin multipoly Version: ${version.entry.commit.revision}
Plugin openstreetbugs Version: 14015
Plugin osmarender Version: 14015
Plugin remotecontrol Version: 14015
Plugin terracer2 Version: ${version.entry.commit.revision}
Plugin utilsplugin Version: 14015
Plugin validator Version: 14015
Plugin wmsplugin Version: 14015

java.lang.NullPointerException

at wmsplugin.Cache.cleanUp(Cache.java:90)
at wmsplugin.WMSLayer.downloadAndPaintVisible(WMSLayer.java:187)
at wmsplugin.WMSLayer.paint(WMSLayer.java:156)
at org.openstreetmap.josm.gui.MapView.paint(MapView.java:275)
at javax.swing.JComponent.paintChildren(JComponent.java:864)
at javax.swing.JComponent.paint(JComponent.java:1036)
at javax.swing.JComponent.paintChildren(JComponent.java:864)
at javax.swing.JComponent.paint(JComponent.java:1036)
at javax.swing.JComponent.paintChildren(JComponent.java:864)
at javax.swing.JComponent.paint(JComponent.java:1036)
at javax.swing.JComponent.paintChildren(JComponent.java:864)
at javax.swing.JComponent.paint(JComponent.java:1036)
at javax.swing.JLayeredPane.paint(JLayeredPane.java:564)
at javax.swing.JComponent.paintChildren(JComponent.java:864)
at javax.swing.JComponent.paintToOffscreen(JComponent.java:5129)
at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1472)
at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1403)
at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:293)
at javax.swing.RepaintManager.paint(RepaintManager.java:1217)
at javax.swing.JComponent.paint(JComponent.java:1013)
at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:21)
at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:60)
at sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:97)
at java.awt.Container.paint(Container.java:1780)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:814)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:714)
at javax.swing.RepaintManager.seqPaintDirtyRegions(RepaintManager.java:694)
at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:128)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

[stoecker]

​[o15091].