ObjectStreamClass.getConstructorId(Class<?>) is not supported on SDK 27

[csshuai]

Serialize class:

public class Test implements Serializable {
    private String fileName;

    public Test(String fileName) {
        this.fileName = fileName;
    }
}

java.lang.UnsupportedOperationException: ObjectStreamClass.getConstructorId(Class<?>) is not supported on SDK 27
at java.io.ObjectStreamClass.getConstructorId(ObjectStreamClass.java:2294)
at java.lang.reflect.Method.invoke(Native Method)
at org.objenesis.instantiator.android.Android18Instantiator.findConstructorIdForJavaLangObjectConstructor(Android18Instantiator.java:72)
at org.objenesis.instantiator.android.Android18Instantiator.<init>(Android18Instantiator.java:39)
at org.objenesis.strategy.StdInstantiatorStrategy.newInstantiatorOf(StdInstantiatorStrategy.java:96)
at com.esotericsoftware.kryo.Kryo$DefaultInstantiatorStrategy.newInstantiatorOf(Kryo.java:1323)
at com.esotericsoftware.kryo.Kryo.newInstantiator(Kryo.java:1127)
at com.esotericsoftware.kryo.Kryo.newInstance(Kryo.java:1136)
at com.esotericsoftware.kryo.serializers.FieldSerializer.create(FieldSerializer.java:562)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.read(CompatibleFieldSerializer.java:71)
at com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:734)
at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
at com.esotericsoftware.kryo.serializers.CompatibleFieldSerializer.read(CompatibleFieldSerializer.java:145)
at com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:734)
at com.esotericsoftware.kryo.serializers.ObjectField.read(ObjectField.java:125)
at com.esotericsoftware.kryo.serializers.FieldSerializer.read(FieldSerializer.java:543)
at com.esotericsoftware.kryo.Kryo.readObject(Kryo.java:712)
at io.paperdb.KryorStorage.readTableFile(KryorStorage.java:222)
at io.paperdb.KryorStorage.readTableFile(KryorStorage.java:231)
at io.paperdb.KryorStorage.readTableFile(KryorStorage.java:210)
at io.paperdb.KryorStorage.select(KryorStorage.java:133)
at io.paperdb.Kryor.read(Kryor.java:62)
at io.paperdb.Kryor.read(Kryor.java:47)

[pilgr]

Do you serialize class or deserialize? According to stack trace you have exception on read data. If so make sure you read the data you properly saved for the same class Test.

[csshuai]

Sorry for my poor english. I serialize the class Test. Then read it, throw the exception. It is the same class Test.

When i add the default constructor for Test, the read is ok.

Android 8.0 API 26

[pilgr]

Could you show complete code? Or probably test?

On Mar 22, 2018 13:22, "csshuai" notifications@github.com wrote:

Sorry for my poor english. I serialize the class Test. Then read it. It is the same class Test.

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[csshuai]

I'm sorry, it's my fault.

I added the code to the build.gradle file to cause this error

configurations.all {
    resolutionStrategy.force 'org.objenesis:objenesis:2.2'
}

[pilgr]

no problem