java.lang.internalError with retrofit and proguard.

[PrashamTrivedi]

Hi.
Here is my environment

1. Extended RxAppComatActivity
2. Created two methods for composing

 public <T> Transformer<T, T> applyToMainThread() {
        return new Transformer() {
            public Observable<T> call(Observable<T> observable) {
                return observable.observeOn(AndroidSchedulers.mainThread());
            }
        };
    }

    public <T> Transformer<T, T> bindRxActivity(ActivityLifecycleProvider provider) {
        return provider.bindToLifecycle();
    }

1. Calling a method in onCreate which creates an observable from Retrofit
2. Calling applyToMainThread followed by bindRxActivity, in two chain calls of compose method.
3. I have applied proguard on release build where I am discovering this crash

  java.lang.InternalError:22:12.233  13773-13809/? W/System.err﹕ java.lang.InternalError
    at rx.internal.util.unsafe.UnsafeAccess.addressOf(SourceFile:103)
    at rx.internal.util.unsafe.MpmcArrayQueueProducerField.<clinit>(SourceFile:31)
    at rx.internal.util.ObjectPool.initialize(SourceFile:125)
    at rx.internal.util.ObjectPool.<init>(SourceFile:55)
    at rx.internal.util.ObjectPool.<init>(SourceFile:37)
    at rx.internal.util.RxRingBuffer$1.<init>(SourceFile:279)
    at rx.internal.util.RxRingBuffer.<clinit>(SourceFile:279)
    at rx.internal.operators.OnSubscribeCombineLatest.<init>(SourceFile:52)
    at rx.Observable.combineLatest(SourceFile:789)
    at rx.Observable.combineLatest(SourceFile:520)
    at com.trello.rxlifecycle.RxLifecycle$2.call(SourceFile:152)
    at com.trello.rxlifecycle.RxLifecycle$2.call(SourceFile:148)
    at rx.Observable.compose(SourceFile:204)
    at com.restaurant.zoomi.SplashScreen.getApplicationObject(SourceFile:131)
    at com.restaurant.zoomi.SplashScreen.onCreate(SourceFile:118)
    at android.app.Activity.performCreate(Activity.java:5990)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1106)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2278)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2387)
    at android.app.ActivityThread.access$800(ActivityThread.java:151)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1303)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:135)
    at android.app.ActivityThread.main(ActivityThread.java:5254)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
    at java.lang.Class.getDeclaredField(Class.java:890)
    at rx.internal.util.unsafe.UnsafeAccess.addressOf(SourceFile:100)

SourceFile:152 points to following code.

private static <T, R> Transformer<T, T> bind(Observable<R> lifecycle, final Func1<R, R> correspondingEvents) {
        if(lifecycle == null) {
            throw new IllegalArgumentException("Lifecycle must be given");
        } else {
            final Observable sharedLifecycle = lifecycle.share();
            return new Transformer() {
                public Observable<T> call(Observable<T> source) {
                    return source.takeUntil(Observable.combineLatest(sharedLifecycle.take(1).map(correspondingEvents), sharedLifecycle.skip(1), new Func2() {
                        public Boolean call(R bindUntilEvent, R lifecycleEvent) {
                            return Boolean.valueOf(lifecycleEvent == bindUntilEvent);
                        }
                    }).takeFirst(new Func1() {
                        public Boolean call(Boolean shouldComplete) {
                            return shouldComplete;
                        }
                    }));
                }
            };
        }
    }

This code runs fine in debug build without obfuscation.
Is there anything done wrong w.r.t. proguard?

[dlew]

This is not an issue with RxLifecycle, but with proguard + RxJava: ReactiveX/RxJava#3097