Various LDAP solutions (such as Google's LDAP user directory at ldap.google.com) require that a specific client certificate be presented when establishing a connection. Otherwise, the request will fail to authenticate successfully.

Google has created instructions for connecting to their LDAP service using Jira - however, these instructions do not work for Bitbucket due to the fact that the keystore/truststore configuration is handled by Spring boot before being used alongside the embedded Tomcat instance.

Thus, the request here is to allow for Bitbucket to specify a certain certificate within its keystore/truststore for use as the client certificate when establishing a connection to a remote user directory, as it is not possible to do so through the methods used with other Atlassian products.