Default OAuth settings not in line with used API server

[Don-vip]

I switched to master dev OSM API server (​http://api06.dev.openstreetmap.org) to fix #7938 and it took me a moment to understand why I wasn't able to create a changeset.
After setting up the API server, I created a new OAuth token with the wizard, but did not see that the default advanced params are always set to:

Request Token URL: http://www.openstreetmap.org/oauth/request_token
Access Token URL: http://www.openstreetmap.org/oauth/access_token
Authorize URL: http://www.openstreetmap.org/oauth/authorize 

Two things to fix:

• When a complete custom API server is set, the defaults settings should not be used and the user forced to enter the OAuth URLs
• When ​a known dev OSM API is used (i.e. ending by dev.openstreetmap.org), the default settings should be set to

  Request Token URL: http://<name>.dev.openstreetmap.org/oauth/request_token
  Access Token URL: http://<name>.dev.openstreetmap.org/oauth/access_token
  Authorize URL: http://<name>.dev.openstreetmap.org/oauth/authorize 
  

[Don-vip]

In 5411/josm:

see #7943 - Fix OAuth rejection error message

[Don-vip]

I am still unable to access dev API server with JOSM and OAuth but I don't understand if I'm doing something wrong or what. Has someone else ever tried ?

The only thing I am able to do is getting a weird NPE when switching back to standard API server and validating the preferences dialog:

Build-Date: 2012-08-09 21:45:10
Revision: 5411
Is-Local-Build: true

Identification: JOSM/1.5 (5411 SVN en)
Memory Usage: 156 MB / 1816 MB (55 MB allocated, but free)
Java version: 1.7.0_05, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Operating system: Windows 7

java.lang.NullPointerException
	at org.openstreetmap.josm.data.Preferences$AbstractSetting.toString(Preferences.java:125)
	at java.text.MessageFormat.subformat(Unknown Source)
	at java.text.MessageFormat.format(Unknown Source)
	at java.text.Format.format(Unknown Source)
	at java.text.MessageFormat.format(Unknown Source)
	at org.openstreetmap.josm.tools.I18n.tr(I18n.java:151)
	at org.openstreetmap.josm.gui.io.UploadDialog.preferenceChanged(UploadDialog.java:505)
	at org.openstreetmap.josm.data.Preferences.firePreferenceChanged(Preferences.java:237)
	at org.openstreetmap.josm.data.Preferences.put(Preferences.java:488)
	at org.openstreetmap.josm.gui.preferences.server.OsmApiUrlInputPanel.saveToPreferences(OsmApiUrlInputPanel.java:141)
	at org.openstreetmap.josm.gui.preferences.ServerAccessPreference.ok(ServerAccessPreference.java:133)
	at org.openstreetmap.josm.gui.preferences.PreferenceTabbedPane$3.run(PreferenceTabbedPane.java:254)
	at org.openstreetmap.josm.gui.preferences.PreferenceTabbedPane.savePreferences(PreferenceTabbedPane.java:303)
	at org.openstreetmap.josm.gui.preferences.PreferenceDialog$OKAction.actionPerformed(PreferenceDialog.java:159)

[Don-vip]

In 5412/josm:

see #7943 - fix NPE when switching back to default OSM API server after having tried to upload data to another server instance

[Don-vip]

In 5422/josm:

see #7943 - Introduce OsmApi.DEFAULT_API_URL, better handling of change of API URL in OAuth management, javadoc improvements

[Don-vip]

Replying to Don-vip:

I am still unable to access dev API server with JOSM and OAuth but I don't understand if I'm doing something wrong or what. Has someone else ever tried ?

No progress on this, even after the update. Could it be a problem on OSM side ?