Consume SharePoint 2013 REST Services From Java

Hello,

for one of my clients we want to consume SharePoint 2013 Rest Services.

i've found on internet an example 

NTCredentials credentials =
                new NTCredentials(user, pass, "JAVA-MACHINE-NAME", "DOMAIN");
            HttpClient httpClient = new HttpClient();
            httpClient.getState().setCredentials(AuthScope.ANY, credentials);
            httpClient.getParams().setAuthenticationPreemptive(true);

but in HttpClient 4.3.5 setAuthenticationPreemptive is deprecated.

Does someone has an idea about to authenticate the Java application to consume SharePoint 2013 Rest Services?

Thanks