RxJava2 connectableObservables - autoConnect(2) - why is it not waiting for 2 subscribers to call connect? - rx-java2

Question

I have created a connectedObservable like this:
final List<Integer> list = new ArrayList<Integer>();
for(int j=1;j<=3;j++)
list.add(j);
Observable<Integer> observable = Observable.fromIterable(list);
this observable emits 1, 2, 3
now i convert it into a connectableObservable this way :
observable.publish().autoConnect(2);
i am therefore expecting since i passed in 2 to autoConnect that it will not trigger until 2 subscribers have been found. but instead it is executing on only 1 subscriber found.
let me show you what i tried:
observable.subscribe(new Consumer<Integer>() {
#Override
public void accept(Integer integer) {
Log.v("consumer1:", ""+integer);
}
});
I am expecting that this DOES NOT print anything to the log. but instead i get the following:
consumer1:: 1
consumer1:: 2
consumer1:: 3
according to the documentation on autoConnect(int
numberOfSubscribers):
* #param numberOfSubscribers the number of subscribers to **await** before calling connect
* on the ConnectableObservable. A non-positive value indicates
* an immediate connection.

Answer 1

In RxJava, you should not ignore the returns of operators:
Observable<Integer> shared = observable.publish().autoConnect(2);
shared.subscribe(new Consumer<Integer>() {
#Override
public void accept(Integer integer) {
Log.v("consumer1:", ""+integer);
}
});
shared.subscribe(new Consumer<Integer>() {
#Override
public void accept(Integer integer) {
Log.v("consumer2:", ""+integer);
}
});
Recommended reading: https://github.com/ReactiveX/RxJava#simple-background-computation