IAE: Null projection prevents JOSM to start

[fabiansteffin@…]

What steps will reproduce the problem?

1. Start JOSM, Version 12275

What is the expected result?

JOSM starts

What happens instead?

Error "Eine unerwartete Ausnahme ist aufgetreten"

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

URL:http://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2017-05-29 16:19:58 +0200 (Mon, 29 May 2017)
Build-Date:2017-05-29 14:25:03
Revision:12275
Relative:URL: ^/trunk

Identification: JOSM/1.5 (12275 de) Windows 8.1 64-Bit
OS Build number: Windows 8.1 Pro null (9600)
Memory Usage: 240 MB / 1790 MB (182 MB allocated, but free)
Java version: 1.8.0_121-b13, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: \Display0 1366x768
Maximum Screen Size: 1366x768

Plugins:
+ matsim

Last errors/warnings:
- E: Handled by bug report queue: java.lang.IllegalArgumentException: Parameter must not be null


=== REPORTED CRASH DATA ===
BugReportExceptionHandler#handleException:
No data collected.

Warning issued by: BugReportExceptionHandler#handleException

=== STACK TRACE ===
Thread: main (1)
java.lang.IllegalArgumentException: Parameter must not be null
	at org.openstreetmap.josm.tools.CheckParameterUtil.ensureParameterNotNull(CheckParameterUtil.java:94)
	at org.openstreetmap.josm.Main.setProjection(Main.java:1064)
	at org.openstreetmap.josm.gui.preferences.projection.ProjectionPreference.setProjection(ProjectionPreference.java:439)
	at org.openstreetmap.josm.gui.preferences.projection.ProjectionPreference.setProjection(ProjectionPreference.java:417)
	at org.openstreetmap.josm.Main.preConstructorInit(Main.java:734)
	at org.openstreetmap.josm.gui.MainApplication.main(MainApplication.java:355)

[bastiK]

Thanks for the report! Could you please click Help > Show Status Report and post the lower part (your preferences)? I'm particular interested in the lines starting with projection.default, if any.