To find "CN=nameOfTheUser,OU=firstGroupName,...,DC=domain1,DC=domain2" or any entry you know the DN is correct, you need something like:
SearchRequest searchRequest = new SearchRequest("CN=nameOfTheUser,OU=firstGroupName,...,DC=domain1,DC=domain2", SearchScope.BASE, Filter.createEqualityFilter("objectClass", "person"));
You should also consider a READ similar to:
LDAPConnection.read("CN=nameOfTheUser,OU=firstGroupName,...,DC=domain1,DC=domain2",
java.lang.String[], LDAPSearchConstraints)
If you need to find the entry, then a search request similar to:
Filter andFilter = new Filter.createANDFilter(
Filter.createEqualityFilter("objectClass", "person"),
Filter.createEqualityFilter("cn", "nameOfTheUser"));
SearchRequest searchRequest = new SearchRequest("new SearchRequest(ldapConfig.getBaseDn()", SearchScope.BASE, andFilter);
-jim