Java DI question

I am trying to create a new Business Partner using the

Java wrapper classes to the Business One DI. I am having a problem though when it comes to adding Contacts and Addresses, the methods:

getAddresses

and

getContactEmployees

don't exist, even though the docs for IBusinessPartners say they do..

How do I create addresses and contacts and attach them to a BusinessPartner object that I am creating ?

Thanks