Plugin Cadastre do not download cadastre tiles

[Binnette]

What steps will reproduce the problem?

1. Go to Grenoble France
2. Download the cadastre with the plugin
3. A layer "GRENOBLE" is created but it do not have any cadastre tile

What is the expected result?

Cadastre to be displayed

What happens instead?

Cadastre is not displayed

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: 2017-08-22 00:39:15 +0200 (Tue, 22 Aug 2017)
Build-Date:2017-08-22 01:34:15
Revision:12618
Relative:URL: ^/trunk

Identification: JOSM/1.5 (12618 fr) Windows 7 64-Bit
OS Build number: Windows 7 Enterprise (7601)
Memory Usage: 909 MB / 3454 MB (739 MB allocated, but free)
Java version: 1.8.0_144-b01, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: \Display0 1680x1050, \Display1 1920x1080
Maximum Screen Size: 1920x1080
VM arguments: [-Djava.security.manager, -Djava.security.policy=file:<java.home>\lib\security\javaws.policy, -DtrustProxy=true, -Djnlpx.home=<java.home>\bin, -Djnlpx.origFilenameArg=%UserProfile%\Downloads\josm-latest.jnlp, -Djnlpx.remove=true, -Djava.util.Arrays.useLegacyMergeSort=true, -Djnlpx.splashport=20058, -Djnlpx.jvm=<java.home>\bin\javaw.exe]
Dataset consistency test: No problems found

Plugins:
+ PicLayer (33385)
+ cadastre-fr (33392)
+ ejml (32680)
+ geotools (33380)
+ jts (32699)

Last errors/warnings:
- W: Request to home page failed. Http error:301. Try again 9 times
- W: Request to home page failed. Http error:301. Try again 8 times
- W: Request to home page failed. Http error:301. Try again 7 times
- W: Request to home page failed. Http error:301. Try again 6 times
- W: Request to home page failed. Http error:301. Try again 5 times
- W: Request to home page failed. Http error:301. Try again 4 times
- W: Request to home page failed. Http error:301. Try again 3 times
- W: Request to home page failed. Http error:301. Try again 2 times
- W: Request to home page failed. Http error:301. Try again 1 times
- W: cadastre_fr.WMSException: Impossible d’ouvrir une nouvelle session.

[Don-vip]

Cadastre switched to HTTPS and the plugin doesn't handle the redirections, as JOSM' HttpClient is not (yet) used.

[Don-vip]

... and they're using a non-standard Root CA, not trusted by Java (​Certigna) :/

[Don-vip]

In 12623/josm:

see #14649, see #15178 - load Certigna certificate from platform keystore, needed for cadastre-fr plugin, as it is now used by French government

[Don-vip]

Fixed in [o33514:33515]. Requires JOSM r12623. Both josm-latest and plugin should become available in about 10 minutes.

[Binnette]

Thanks a lot ! It is working very nicely :)