So I have a simple http request using OkHttp. I do this with RxJava on Android. I add this RxJava call to a CompositeDisposable that I then clear on onStop. For some reason that is triggering this exception below. I'm a little unsure about how to fix it.
Caused by java.lang.IllegalStateException: Unbalanced enter/exit
at okio.AsyncTimeout.enter(AsyncTimeout.java:73)
at okio.AsyncTimeout$2.read(AsyncTimeout.java:235)
at okio.RealBufferedSource.read(RealBufferedSource.java:47)
at okhttp3.internal.http1.Http1Codec$AbstractSource.read(Http1Codec.java:363)
at okhttp3.internal.http1.Http1Codec$FixedLengthSource.read(Http1Codec.java:407)
at okio.RealBufferedSource.read(RealBufferedSource.java:47)
at okhttp3.internal.cache.CacheInterceptor$1.read(CacheInterceptor.java:174)
at okhttp3.internal.Util.skipAll(Util.java:175)
at okhttp3.internal.Util.discard(Util.java:157)
at okhttp3.internal.cache.CacheInterceptor$1.close(CacheInterceptor.java:202)
at okio.RealBufferedSource.close(RealBufferedSource.java:469)
at okio.RealBufferedSource$1.close(RealBufferedSource.java:453)
at java.nio.channels.Channels$ReadableByteChannelImpl.implCloseChannel(Channels.java:255)
at java.nio.channels.spi.AbstractInterruptibleChannel$1.interrupt(AbstractInterruptibleChannel.java:166)
at java.lang.Thread.interrupt(Thread.java:957)
at java.util.concurrent.FutureTask.cancel(FutureTask.java:146)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.cancel(ScheduledThreadPoolExecutor.java:258)
at io.reactivex.internal.schedulers.ScheduledRunnable.dispose(ScheduledRunnable.java:107)
at io.reactivex.disposables.CompositeDisposable.dispose(CompositeDisposable.java:217)
at io.reactivex.disposables.CompositeDisposable.dispose(CompositeDisposable.java:80)
at io.reactivex.internal.schedulers.IoScheduler$EventLoopWorker.dispose(IoScheduler.java:210)
at io.reactivex.Scheduler$DisposeTask.dispose(Scheduler.java:464)
at io.reactivex.internal.disposables.DisposableHelper.dispose(DisposableHelper.java:125)
at io.reactivex.internal.operators.observable.ObservableSubscribeOn$SubscribeOnObserver.dispose(ObservableSubscribeOn.java:74)
at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.dispose(ObservableObserveOn.java:146)
at io.reactivex.internal.disposables.DisposableHelper.dispose(DisposableHelper.java:125)
at io.reactivex.observers.DisposableObserver.dispose(DisposableObserver.java:91)
at io.reactivex.disposables.CompositeDisposable.dispose(CompositeDisposable.java:217)
at io.reactivex.disposables.CompositeDisposable.clear(CompositeDisposable.java:183)
at MyActivity.onStop(MyActivity.java:320)
at android.app.Instrumentation.callActivityOnStop(Instrumentation.java:1297)
at android.app.Activity.performStop(Activity.java:7159)
at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:4625)
at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:4691)
at android.app.ActivityThread.-wrap7(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1718)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6732)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1520)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1410)
The code is basically this:
Observable<Stuff> observable = Observable.create(new ObservableOnSubscribe<Stuff>() {
@Override
public void subscribe(@NonNull ObservableEmitter<Stuff> e) throws Exception {
//do OkHttp stuff, call onNext(stuff).
}
})
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread());
DisposableObserver<Stuff> disposableObserver = observable
.subscribeWith(new DisposableObserver<Stuff>() {......});
disposables.add(disposableObserver);
Theres a bug in some Android VMs that interacts poorly with the new D8 compiler.
https://github.com/square/okhttp/issues/3641#issuecomment-370717021
Google has recently improved D8 to avoid triggering the bug.
来源：https://stackoverflow.com/questions/49581241/compositedisposable-clear-causes-okhttp-to-throw-java-lang-illegalstateexception