NPE when clicking anywhere in the viewport in rev 3915 (local build)

[hjart]

What steps will reproduce the problem?

What is the expected result?

What happens instead?

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

Build-Date: 2011-02-20 06:34:45
Revision: 3915
Is-Local-Build: true

Identification: JOSM/1.5 (3915 SVN da)
Memory Usage: 319 MB / 672 MB (134 MB allocated, but free)
Java version: 1.6.0_22, Sun Microsystems Inc., Java HotSpot(TM) Server VM
Operating system: Linux
Dataset consistency test: No problems found

Plugin: DirectUpload (25199)
Plugin: buildings_tools (25192)
Plugin: editgpx (25192)
Plugin: graphview (25199)
Plugin: mapdust (25312)
Plugin: osmarender (25192)
Plugin: reverter (25190)
Plugin: routing (25199)
Plugin: undelete (25199)

java.lang.NullPointerException
	at org.openstreetmap.josm.gui.layer.TMSLayer$10$1.mouseClicked(TMSLayer.java:447)
	at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:253)
	at java.awt.Component.processMouseEvent(Component.java:6270)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
	at java.awt.Component.processEvent(Component.java:6032)
	at java.awt.Container.processEvent(Container.java:2041)
	at java.awt.Component.dispatchEventImpl(Component.java:4630)
	at java.awt.Container.dispatchEventImpl(Container.java:2099)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4577)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4247)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
	at java.awt.Container.dispatchEventImpl(Container.java:2085)
	at java.awt.Window.dispatchEventImpl(Window.java:2478)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	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)

[hjart]

This problem still exists in rev 3919. It occurs when a wms layer is enabled and persists after said layer is deleted.

[stoecker]

Ticket #6003 has been marked as a duplicate of this ticket.

[stoecker]

In [3921/josm]:

fix #5990 - NPE