Just downloaded some data for the first time and JOSM crashed

[alberhg@…]

Path: josm
URL: ​http://www.openstreetmap.de/svn/josm
Repository Root: ​http://www.openstreetmap.de/svn/josm
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Revision: 394
Node Kind: directory
Last Changed Author: gebner
Last Changed Rev: 394
Last Changed Date: 2007-10-15 23:24:25 +0200 (Mon, 15 Oct 2007)

java.lang.NullPointerException

at org.openstreetmap.josm.gui.MapView.paint(MapView.java:181)
at javax.swing.JComponent.paintChildren(Unknown Source)
at javax.swing.JComponent.paint(Unknown Source)
at javax.swing.JComponent.paintToOffscreen(Unknown Source)
at javax.swing.BufferStrategyPaintManager.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)

[Gabriel Ebner <ge@…>]

That is interesting. Could you please tell me

• what platform you're on,
• what plugins you have,
• what layers (GPX, WMS, ...) you already had loaded (if any),
• and what area you're trying to download?

[anonymous]

I had a similar problem.
OS: Debian testing/sid (mixed)
Java: Java(TM) SE Runtime Environment (build 1.6.0-b105)

Problem was circumvented by removing mappaint plugin, JOSM works without mappaint

Error message in josm:
Path: josm
URL: ​http://www.openstreetmap.de/svn/josm
Repository Root: ​http://www.openstreetmap.de/svn/josm
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Revision: 401
Node Kind: directory
Last Changed Author: framm
Last Changed Rev: 401
Last Changed Date: 2007-10-17 23:53:50 +0200 (Wed, 17 Oct 2007)

java.lang.RuntimeException: java.lang.reflect.InvocationTargetException

at org.openstreetmap.josm.gui.PleaseWaitRunnable.closeDialog(PleaseWaitRunnable.java:146)
at org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:95)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)

Caused by: java.lang.reflect.InvocationTargetException

at java.awt.EventQueue.invokeAndWait(EventQueue.java:997)
at org.openstreetmap.josm.gui.PleaseWaitRunnable.closeDialog(PleaseWaitRunnable.java:142)
... 4 more

Caused by: java.lang.NoClassDefFoundError: org/openstreetmap/josm/data/osm/Segment

at mappaint.MapPaintPlugin.layerAdded(MapPaintPlugin.java:82)
at org.openstreetmap.josm.gui.MapView.addLayer(MapView.java:121)
at org.openstreetmap.josm.Main.addLayer(Main.java:268)
at org.openstreetmap.josm.actions.NewAction.actionPerformed(NewAction.java:21)
at org.openstreetmap.josm.Main.editLayer(Main.java:275)
at
org.openstreetmap.josm.actions.downloadtasks.DownloadOsmTask$Task.finish(DownloadOsmTask.java:49)
at org.openstreetmap.josm.gui.PleaseWaitRunnable$4.run(PleaseWaitRunnable.java:128)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:199)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:177)
at java.awt.Dialog$1.run(Dialog.java:1039)
at java.awt.Dialog$3.run(Dialog.java:1091)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Dialog.show(Dialog.java:1089)[[BR]]
at java.awt.Component.show(Component.java:1419)
at java.awt.Component.setVisible(Component.java:1372)
at java.awt.Window.setVisible(Window.java:801)
at java.awt.Dialog.setVisible(Dialog.java:979)
at org.openstreetmap.josm.gui.PleaseWaitRunnable$3.run(PleaseWaitRunnable.java:78)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:597)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)

[Gabriel Ebner <ge@…>]

Replying to anonymous:

I had a similar problem.
Caused by: java.lang.NoClassDefFoundError: org/openstreetmap/josm/data/osm/Segment

You've just been using a version of mappaint from before the 0.5 changeover. You'd just need to update it and it should work fine.

The OP's problem is quite a different one.

[Gabriel Ebner <ge@…>]

Fixed in r414.

This fix was more cargo-culting than finding out the real problem, so I'd still like to know how you triggered it.