I have exactly the same question with below.
https://community.bonitasoft.com/questions-and-answers/how-can-i-print-ldaploginmodule-log
I would like to see the logging with users login status by LDAP authentication.
[LdapLoginModule] authentication succeeded [LdapLoginModule] added... [LdapLoginModule] authentication-first mode [LdapLoginModule] user provider:
....