Oauth does not work with current (9900) version

[jfd553]

What steps will reproduce the problem?

1. edit something
2. upload the data
3. enter username and password (mode fully automatic)!

What is the expected result?

Create a changeset and upload the data

What happens instead?

Errors messages (see attached file)

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: 2016-02-28 14:07:49 +0100 (Sun, 28 Feb 2016)
Build-Date:2016-02-28 22:44:23
Revision:9900
Relative:URL: ^/trunk

Identification: JOSM/1.5 (9900 en) Windows 7 64-Bit
Memory Usage: 134 MB / 247 MB (59 MB allocated, but free)
Java version: 1.8.0_31-b13, Oracle Corporation, Java HotSpot(TM) Client VM
VM arguments: [-Djava.security.manager, -Djava.security.policy=file:C:\Program Files (x86)\Java\jre1.8.0_31\lib\security\javaws.policy, -DtrustProxy=true, -Djnlpx.home=<java.home>\bin, -Djnlpx.origFilenameArg=C:\Users\Daniel\AppData\LocalLow\Sun\Java\Deployment\cache\6.0\56\1ee8cfb8-307b9a02, -Djnlpx.remove=false, -Djava.util.Arrays.useLegacyMergeSort=true, -Djnlpx.splashport=50126, -Djnlp.application.href=https://josm.openstreetmap.de/download/josm.jnlp, -Djnlpx.jvm=<java.home>\bin\javaw.exe, -Djnlpx.vmargs=LURqYXZhLnV0aWwuQXJyYXlzLnVzZUxlZ2FjeU1lcmdlU29ydD10cnVlAC1Eam5scC5hcHBsaWNhdGlvbi5ocmVmPWh0dHBzOi8vam9zbS5vcGVuc3RyZWV0bWFwLmRlL2Rvd25sb2FkL2pvc20uam5scAA=]

Plugins:
- PicLayer (31895)
- imageryadjust (31772)
- reverter (32005)
- turnrestrictions (31895)