Thread leaking when LDAP SSL is configured and cacerts does not trust the certificate

When LDAP authentication is configured in xwiki.cfg, and it use SSL protocol, if the root certificates needed to trust the LDAP server SSL key is not properly setup in cacerts key store,
many thread are run and leak memory until an OOM issue is reach, behing unable to create new threads.

This is visible on the memory consumption of the server, not the JVM. In JVM profiling, an unusual high number of thread creation is shown and the eden space grows constantly between GC, even on an idle server.