RxJava: StackOverflowError is swallowed

The following code should have thrown StackOverflowError:

        final PublishSubject<Integer> a = PublishSubject.create();
        final PublishSubject<Integer> b = PublishSubject.create();
        a.subscribe(new Observer<Integer>() {

            @Override
            public void onCompleted() {

            }

            @Override
            public void onError(Throwable e) {
                e.printStackTrace();
            }

            @Override
            public void onNext(Integer args) {
                System.out.println(args);
            }
        });
        b.subscribe(new Observer<Integer>() {

            @Override
            public void onCompleted() {

            }

            @Override
            public void onError(Throwable e) {
                e.printStackTrace();
            }

            @Override
            public void onNext(Integer args) {
                System.out.println(args);
            }
        });
        a.subscribe(new Observer<Integer>() {

            @Override
            public void onCompleted() {

            }

            @Override
            public void onError(Throwable e) {
                e.printStackTrace();
            }

            @Override
            public void onNext(Integer args) {
                b.onNext(args + 1);
            }
        });
        b.subscribe(new Observer<Integer>() {

            @Override
            public void onCompleted() {

            }

            @Override
            public void onError(Throwable e) {
                e.printStackTrace();
            }

            @Override
            public void onNext(Integer args) {
                a.onNext(args + 1);
            }
        });
        a.onNext(1);

However, StackOverflowError is swallowed. The problem is the following line in SafeObserver: https://github.com/Netflix/RxJava/blob/0b1b6e7a91d89ad63263b80747f0bd4683fe4ba2/rxjava-core/src/main/java/rx/operators/SafeObserver.java#L117

            RxJavaPlugins.getInstance().getErrorHandler().handleError(e);

When StackOverflowError is thrown, there is few stack space. However, this line will generate too big stack frame and cause the thread crash. If I comment out this line, I can observe StackOverflowError.

Reported by Samuel at https://groups.google.com/forum/#!topic/rxjava/eraZ-32w1gQ