Originally Posted by teamer

Its no need for that , it returns the version of the whatsapp client i think , its not used anywhere (user-agent maybe ... useless)

public void login() throws IOException, FunXMPP.LoginFailureException, FunXMPP.CorruptStreamException {
this.out.streamStart(this.connection.domain, this.connection.resource);
System.err.println("sent stream start");
sendFeatures();
System.err.println("sent features");
sendAuth();
System.err.println("sent auth");

this.in.streamStart();
System.err.println("read stream start");
String challengeData = readFeaturesAndChallenge();
System.err.println("read features and challenge");
sendResponse(challengeData);
System.err.println("sent response");
readSuccess();
}