final JoinObserver1<T2> jo2 = createObserver(externalSubscriptions, expression.o2(), onError); final JoinObserver1<T3> jo3 = createObserver(externalSubscriptions, expression.o3(), onError); final JoinObserver1<T4> jo4 = createObserver(externalSubscriptions, expression.o4(), onError);
final JoinObserver1<T2> jo2 = createObserver(externalSubscriptions, expression.o2(), onError); final JoinObserver1<T3> jo3 = createObserver(externalSubscriptions, expression.o3(), onError); final JoinObserver1<T4> jo4 = createObserver(externalSubscriptions, expression.o4(), onError);