public SdkClientBuilder proxyCredentials(String user, String password) {
        this.proxyCredentials = new UsernamePasswordCredentials(user, password);
        return this;
    }
public SdkClientBuilder proxyCredentials ( String user , String password ) { this . proxyCredentials = new UsernamePasswordCredentials ( user , password ) ; return this ; }
Specify proxy credentials.
@param user user
@param password password
@return current client builder