com.esotericsoftware.kryo.KryoException：无法找到课程： （

Question

我目前遇到以下异常：

eglSurfaceAttrib not implemented
Failed to set EGL_SWAP_BEHAVIOR on surface 0x9e878060, error=EGL_SUCCESS
com.esotericsoftware.kryo.KryoException: Unable to find class: ����(
Serialization trace:
badQuality (de.myproject.data.transform.MyPendingUpload)
    at com.esotericsoftware.kryo.util.DefaultClassResolver.readName(DefaultClassResolver.java:138)
    at com.esotericsoftware.kryo.util.DefaultClassResolver.readClass(DefaultClassResolver.java:115)
    at com.esotericsoftware.kryo.Kryo.readClass(Kryo.java:641)
    at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:99)
    at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:528)
    at com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:657)
    at com.snappydb.internal.DBImpl.get(DBImpl.java:249)
    at de.myproject.data.storage.SnappyKeyValueDatabase.get(SnappyKeyValueDatabase.java:39)
    at de.myproject.data.transform.MyServiceImpl$1$3.call(MyServiceImpl.java:230)
    at de.myproject.data.transform.MyServiceImpl$1$3.call(MyServiceImpl.java:224)
    at rx.Observable$2.call(Observable.java:162)
    at rx.Observable$2.call(Observable.java:154)
    at rx.Observable$2.call(Observable.java:162)
    at rx.Observable$2.call(Observable.java:154)
    at rx.Observable.unsafeSubscribe(Observable.java:7710)
    at rx.internal.operators.OperatorMerge$MergeSubscriber.onNext(OperatorMerge.java:231)
    at rx.internal.operators.OperatorMerge$MergeSubscriber.onNext(OperatorMerge.java:140)
    at rx.internal.operators.OperatorMap$1.onNext(OperatorMap.java:55)
    at rx.internal.operators.OperatorObserveOn$ObserveOnSubscriber.pollQueue(OperatorObserveOn.java:208)
    at rx.internal.operators.OperatorObserveOn$ObserveOnSubscriber$2.call(OperatorObserveOn.java:170)
    at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:55)
    at android.os.Handler.handleCallback(Handler.java:739)
    at android.os.Handler.dispatchMessage(Handler.java:95)
    at android.os.Looper.loop(Looper.java:135)
    at android.app.ActivityThread.main(ActivityThread.java:5221)
    at java.lang.reflect.Method.invoke(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:372)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)
Caused by: java.lang.ClassNotFoundException: Invalid name: ����(
    at java.lang.Class.classForName(Native Method)
    at java.lang.Class.forName(Class.java:308)
    at com.esotericsoftware.kryo.util.DefaultClassResolver.readName(DefaultClassResolver.java:136)
    ... 28 more

我正在尝试通过使用SnappyDB在设备上存储数据来为Android应用程序构建离线模式。

因此，当用户没有活动的互联网连接时，会存储数据，当互联网连接可用时，应该读取数据并将其上传到服务器。

PendingUpload类如下所示：

public final class PendingUpload implements Serializable {

    final SomeModel someModel;

    final Map<String, Image> images = new HashMap<>();

    Quality goodQuality;

    Quality badQuality;

    Image someImage;

    String string1;

    String string2;

    String string3;

    List<Pair<SomeClass, AnotherClass>> someList;

    List<Attachment> attachments;

    public MyPendingUpload(SomeModel someModel) {
        this.someModel = someModel;
    }

    protected MyPendingUpload() {
        someModel = null;
    }
}

我的Snappy数据库看起来像这样：

public class SnappyKeyValueDatabase implements KeyValueDatabase {
    public static final String KEY_PREFIX = "snappyKeyValueDatabase_";
    @NonNull
    private final DB db;

    public SnappyKeyValueDatabase(@NonNull DB db) {
        this.db = db;
    }

    @Override
    public void put(String key, Object object) throws IOException {
        try {
            db.put(KEY_PREFIX + key, object);
        } catch (SnappydbException e) {
            XLog.x(e);
            throw new IOException(e);
        }
    }

    @Override
    public <T> T get(String key, Class<T> clazz) throws IOException {
        try {
            return (T) db.get(KEY_PREFIX + key, (Class<Serializable>) clazz);
        } catch (SnappydbException e) {
            XLog.x(e);
            throw new IOException(e);
        }
    }

    @Override
    public void delete(String key) throws IOException {
        try {
            db.del(KEY_PREFIX + key);
        } catch (SnappydbException e) {
            XLog.x(e);
            throw new IOException(e);
        }
    }

    @Override
    public Collection<String> list() throws IOException {
        try {
            String[] keys = db.findKeys(KEY_PREFIX);

            ArrayList<String> resultList = new ArrayList<>(keys.length);
            for (String key : keys) {
                resultList.add(key.substring(KEY_PREFIX.length()));
            }

            return resultList;
        } catch (SnappydbException e) {
            XLog.x(e);
            throw new IOException(e);
        }
    }
}

如果您需要更多信息，请告诉我们。 我暂时坚持这个问题一段时间，并感谢任何帮助。提前谢谢！