New capabilities request request make JOSM hang for 90 s on splash screen, when behind a proxy on first start

[Fabi2]

Java does not find the system proxy on Linux x86_64 with latest OpenJDK, and so josm hangs on the new capabilities request.

$ java -Xmx3500M  -jar josm-latest.jar 
Repository Root: http://josm.openstreetmap.de/svn
Build-Date: 2011-02-28 02:31:27
Last Changed Author: bastiK
Revision: 3936
Repository UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
URL: http://josm.openstreetmap.de/svn/trunk
Last Changed Date: 2011-02-27 13:33:37 +0100 (Sun, 27 Feb 2011)
Last Changed Rev: 3936

Warnung: Eigenschaft "proxy.policy" nicht gefunden.
Proxy wird nicht verwendet.
GET http://api.openstreetmap.org/api/capabilities... GET http://api.openstreetmap.org/api/capabilities... GET http://api.openstreetmap.org/api/capabilities... GET http://api.openstreetmap.org/api/capabilities... GET http://api.openstreetmap.org/api/capabilities... GET http://api.openstreetmap.org/api/capabilities... Warnung: die Nachricht des Tages konnte nicht von 'http://josm.openstreetmap.de/wiki/De:StartupPage' gelesen werden. Fehlermeldung war: java.net.ConnectException: Connection timed out

System enviroment variables for the proxy are set:

$ set | grep proxy=
http_proxy=h**p://10.0.0.3:3128
https_proxy=h**p://10.0.0.3:3128
no_proxy=10.0.0.1/8

$ java -version
java version "1.6.0_20"
OpenJDK Runtime Environment (IcedTea6 1.9.7) (ArchLinux-6.b20_1.9.7-2-x86_64)
OpenJDK 64-Bit Server VM (build 17.0-b16, mixed mode)