The NPE is gone but I noticed that moving all ways takes way too long.
Rendering is not the issue. The problem lies in the warning of moving 20+ objects. Seems to me the routine does not stop counting with the 21st objects but counts all.
On a slow machine you have to wait 20+ seconds for the warning while rendering takes just 1 sec.
Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2012-02-20 11:59:50
Last Changed Author: xeen
Revision: 5004
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2012-02-20 12:32:21 +0100 (Mon, 20 Feb 2012)
Last Changed Rev: 5004
Identification: JOSM/1.5 (5004 en)
Memory Usage: 34 MB / 508 MB (4 MB allocated, but free)
Java version: 1.6.0_18, Sun Microsystems Inc., OpenJDK Client VM
Operating system: Linux
Dataset consistency test: No problems found
