"Failed to execute the [groovy] macro" error which prevents users to login with the application

[ilieandriuta]

Environment: Windows 11 Pro 64bit, Firefox 98, using an instance of XWiki 14.1 on Tomcat 9.0.59/ PostgreSQL 14 (tested also on XWiki 13.10.3 Jetty/HSQLDB) on Java 11 and Java 17 from Oracle with Office365 Integration (Pro) 1.9.1

STEPS TO REPRODUCE

1. Go to Administer Wiki > Other > Office365 and fill the Tenant name, Client ID and Secret Key corresponding to the application from Azure Portal
2. Edit a page in wiki/source mode
3. Insert {{office365 /}} macro
4. Click Save & View

EXPECTED RESULTS

The user is asked to login to Microsoft365.

ACTUAL RESULTS

An error is displayed only in the browser and the user cannot login:

Failed to execute the [groovy] macro. Cause: [class java.lang.String cannot be cast to class java.util.List (java.lang.String and java.util.List are in module java.base of loader 'bootstrap')]. Click on this message for details.

Full stacktrace is available here: https://up1.xwikisas.com/#78RiUGVIB0NujZBTyPy8Cg

The issue reproduced also on XWiki 13.10.3. However, I've tested with Office365 Integration (Pro) 1.8 and the issue could not be reproduced.

[AndreeaChi]

I have reproduced the issue on XWiki Cloud 12.10.6 as well with Office365 Integration 1.9.1 with slightly different steps:

1. Install the Office365 Integration 1.9.1 version
2. Register the app according to the installation documentation on the Azure portal
3. Add the credentials on the XWiki Adminstration > Other > Office365
4. Go to the page https://testandreealicenses.cloud.xwiki.com/xwiki/bin/view/Office365/OAuth and you should see a permissions message and agree with it:
   

Result right after:

[AndreeaChi]

The issue also reproduces when on a new browser session, I log into the wiki, then I access the https://testandreealicenses.cloud.xwiki.com/xwiki/bin/view/Office365/OAuth .

It asks to sign in with the Microsoft account, I add the credentials of my Microsoft account and right after the result is the same error.