SmartRefreshLayout 配合下拉加载更多时候报错

SmartRefreshLayout refreshLayout; //下拉刷新，上拉加载

learnLoader.getArticleVideoData(pageNo, 20, 5).subscribe(new RequestCallback<ArticleVideoData.Data>() {
@Override
public void onSuccess(ArticleVideoData.Data articleVideoData) {
if (pageNo == 1) {
adapter.setNewData(Arrays.asList(articleVideoData.rows));
refreshLayout.setEnableLoadMore(true);
} else {
adapter.addData(Arrays.asList(articleVideoData.rows));
}
pageCount = articleVideoData.pageCount;
if (refreshLayout != null) {
if (pageNo == 1) {
refreshLayout.finishRefresh();
} else {
refreshLayout.finishLoadMore();
}
}
pageNo++;
}

        @Override
        public void onFail(Throwable e) {
            if (refreshLayout != null) {
                refreshLayout.finishLoadMore();
            }
        }
    }); 

io.reactivex.exceptions.UndeliverableException: The exception could not be delivered to the consumer because it has already canceled/disposed the flow or the exception has nowhere to go to begin with. Further reading: https://github.com/ReactiveX/RxJava/wiki/What's-different-in-2.0#error-handling | java.lang.UnsupportedOperationException
at io.reactivex.plugins.RxJavaPlugins.onError(RxJavaPlugins.java:367)
at io.reactivex.android.schedulers.HandlerScheduler$ScheduledRunnable.run(HandlerScheduler.java:121)
at android.os.Handler.handleCallback(Handler.java:873)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:201)
at android.app.ActivityThread.main(ActivityThread.java:6815)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873)
Caused by: java.lang.UnsupportedOperationException
at java.util.AbstractList.add(AbstractList.java:148)
at java.util.AbstractList.add(AbstractList.java:108)
at java.util.AbstractCollection.addAll(AbstractCollection.java:344)
at com.chad.library.adapter.base.BaseQuickAdapter.addData(BaseQuickAdapter.java:559)
at com.typartybuilding.activity.lean.XrxyAct$3.onSuccess(XrxyAct.java:106)
at com.typartybuilding.activity.lean.XrxyAct$3.onSuccess(XrxyAct.java:99)
at com.typartybuilding.network.https.RequestCallback.onNext(RequestCallback.java:21)
at io.reactivex.internal.operators.observable.ObservableMap$MapObserver.onNext(ObservableMap.java:62)
at io.reactivex.observers.SerializedObserver.onNext(SerializedObserver.java:111)
at io.reactivex.internal.operators.observable.ObservableDebounceTimed$DebounceTimedObserver.emit(ObservableDebounceTimed.java:143)
at io.reactivex.internal.operators.observable.ObservableDebounceTimed$DebounceEmitter.run(ObservableDebounceTimed.java:168)
at io.reactivex.internal.operators.observable.ObservableDebounceTimed$DebounceTimedObserver.onComplete(ObservableDebounceTimed.java:124)
at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.checkTerminated(ObservableObserveOn.java:287)
at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.drainNormal(ObservableObserveOn.java:172)
at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.run(ObservableObserveOn.java:255)
at io.reactivex.android.schedulers.HandlerScheduler$ScheduledRunnable.run(HandlerScheduler.java:119)
at android.os.Handler.handleCallback(Handler.java:873) 
at android.os.Handler.dispatchMessage(Handler.java:99) 
at android.os.Looper.loop(Looper.java:201) 
at android.app.ActivityThread.main(ActivityThread.java:6815) 
at java.lang.reflect.Method.invoke(Native Method) 
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547) 
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873) 
java.lang.UnsupportedOperationException

Start at BaseQuickAdapter.addData, then compare it with the XrxyAct.onSuccess call shown in the stack trace. Reproduce the error while loading more after setNewData receives Arrays.asList; the work is done when loading more completes without UnsupportedOperationException.