List LDAP trusted domains with Java

We're migrating from C to Java, and we need to query Acti开发者_如何学Pythonve-Dirctory Domain to get the list of trusted domains. Until now, we've done it with ADSI.

And a second question. Is the concept of "trusted domains" only related to Active-Directory Domain, or is it a more general concept related to the LDAP specification itself?