// Caused by: java.lang.IllegalStateException: ref counts can't go to zero here: stable=0 unstable=0
// at android.os.Parcel.readException(Parcel.java:1628)
// at android.os.Parcel.readException(Parcel.java:1573)
// at android.app.ActivityManagerProxy.refContentProvider(ActivityManagerNative.java:3601)
// at android.app.ActivityThread.releaseProvider(ActivityThread.java:4950)
// at android.app.ContextImpl$ApplicationContentResolver.releaseUnstableProvider(ContextImpl.java:2025)
// at android.content.ContentResolver.openTypedAssetFileDescriptor(ContentResolver.java:1157)
// at android.content.Contenter code hereentResolver.openAssetFileDescriptor(ContentResolver.java:944)
// at android.content.ContentResolver.openInputStream(ContentResolver.java:664)
// at com.android.music.MusicUtils.getArtwork(MusicUtils.java:1239)
// at com.android.music.MediaPlaybackService$NotificationAsyncTask.doInBackground(MediaPlaybackService.java:1809)
// at com.android.music.MediaPlaybackService$NotificationAsyncTask.doInBackground(MediaPlaybackService.java:1805)
// at android.os.AsyncTask$2.call(AsyncTask.java:295)
// at java.util.concurrent.FutureTask.run(FutureTask.java:237)
// ... 4 more
//
这是我运行后猴子测试的日志。由于引用计数引起的崩溃不会在这里变为零：stable = 0 unstable = 0。谁知道这个错误的原因？