[v13>...]Calling method with positionnal arguments don't work

[flotho]

try to call a simple message_post in v13 (signature has changed with the * ) : https://github.com/odoo/odoo/blob/13.0/addons/mail/models/mail_thread.py#L1812

example that worked for v<13.0

Long picking_id = (long) 1;
String errorMessage = "test message";
errorMessage = "'<ul>" + errorMessage + "</ul>'";

Object[] prepare1 = session.executeCommand("stock.picking", "message_post", new Object[] {
    new Object[]{ picking_id.intValue(), }, 
errorMessage				
}
);

causes :

021/10/08 10:55:38 - send error messages to pickings.0 -   File "/opt/odoo/odoo-server/odoo/addons/base/controllers/rpc.py", line 88, in x
mlrpc_2
2021/10/08 10:55:38 - send error messages to pickings.0 -     response = self._xmlrpc(service)
2021/10/08 10:55:38 - send error messages to pickings.0 -   File "/opt/odoo/odoo-server/odoo/addons/base/controllers/rpc.py", line 68, in _
xmlrpc
2021/10/08 10:55:38 - send error messages to pickings.0 -     result = dispatch_rpc(service, method, params)
2021/10/08 10:55:38 - send error messages to pickings.0 -   File "/opt/odoo/odoo-server/odoo/http.py", line 141, in dispatch_rpc
2021/10/08 10:55:38 - send error messages to pickings.0 -     result = dispatch(method, params)
2021/10/08 10:55:38 - send error messages to pickings.0 -   File "/opt/odoo/odoo-server/odoo/service/model.py", line 41, in dispatch
2021/10/08 10:55:38 - send error messages to pickings.0 -     res = fn(db, uid, *params)
2021/10/08 10:55:38 - send error messages to pickings.0 -   File "/opt/odoo/odoo-server/odoo/service/model.py", line 168, in execute_kw
2021/10/08 10:55:38 - send error messages to pickings.0 -     return execute(db, uid, obj, method, *args, **kw or {})
2021/10/08 10:55:38 - send error messages to pickings.0 -   File "/opt/odoo/odoo-server/odoo/service/model.py", line 94, in wrapper
2021/10/08 10:55:38 - send error messages to pickings.0 -     return f(dbname, *args, **kwargs)
2021/10/08 10:55:38 - send error messages to pickings.0 -   File "/opt/odoo/odoo-server/odoo/service/model.py", line 175, in execute
2021/10/08 10:55:38 - send error messages to pickings.0 -     res = execute_cr(cr, uid, obj, method, *args, **kw)
2021/10/08 10:55:38 - send error messages to pickings.0 -   File "/opt/odoo/odoo-server/odoo/service/model.py", line 159, in execute_cr
2021/10/08 10:55:38 - send error messages to pickings.0 -     result = odoo.api.call_kw(recs, method, args, kw)
2021/10/08 10:55:38 - send error messages to pickings.0 -   File "/opt/odoo/odoo-server/odoo/api.py", line 396, in call_kw
2021/10/08 10:55:38 - send error messages to pickings.0 -     result = _call_kw_multi(method, model, args, kwargs)
2021/10/08 10:55:38 - send error messages to pickings.0 -   File "/opt/odoo/odoo-server/odoo/api.py", line 383, in _call_kw_multi
2021/10/08 10:55:38 - send error messages to pickings.0 -     result = method(recs, *args, **kwargs)
2021/10/08 10:55:38 - send error messages to pickings.0 - TypeError: message_post() takes 1 positional argument but 2 were given

didn't find a way to pass body='messagevalue' as parameter thanks to java