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RuedigerMoeller / fast-serialization

FST: fast java serialization drop in-replacement
Apache License 2.0
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Android serialization problems #321

Open AnnaDKr opened 2 years ago

AnnaDKr commented 2 years ago

Hi, while using version 2.57 I found that Class object and Timestamp object serialization does not work on Android runtime. Tested on Android 7-12.

Sample class that I want to serialize looks like:

public class SomeClassToSerialize implements Serializable {

    private Class type;

    public SomeClassToSerialize(Class type) {
        this.type = type;
    }
}

And a test case:

SomeClassToSerialize testObject = new SomeClassToSerialize(Object.class);
FSTConfiguration fstConfiguration = FSTConfiguration.createAndroidDefaultConfiguration();
SomeClassToSerialize copy = fstConfiguration.deepCopy(testObject);

It's working when I run it as a test, but in Android app it throws an exception:

2022-02-16 14:47:20.448 13606-13606/eu.eleader.psx.debug E/PsxLog: eleader: Can not make a java.lang.Class constructor accessible
    java.lang.SecurityException: Can not make a java.lang.Class constructor accessible
        at java.lang.reflect.AccessibleObject.setAccessible0(AccessibleObject.java:150)
        at java.lang.reflect.AccessibleObject.setAccessible(AccessibleObject.java:132)
        at org.nustaq.serialization.FSTObjenesisInstantiator.findConstructorForExternalize(FSTObjenesisInstantiator.java:59)
        at org.nustaq.serialization.FSTObjenesisInstantiator.findConstructorForSerializable(FSTObjenesisInstantiator.java:72)
        at org.nustaq.serialization.FSTClazzInfo.<init>(FSTClazzInfo.java:137)
        at org.nustaq.serialization.FSTClazzInfoRegistry.getCLInfo(FSTClazzInfoRegistry.java:129)
        at org.nustaq.serialization.FSTObjectOutput.getFstClazzInfo(FSTObjectOutput.java:534)
        at org.nustaq.serialization.FSTObjectOutput.writeObjectWithContext(FSTObjectOutput.java:416)
        at org.nustaq.serialization.FSTObjectOutput.writeObjectWithContext(FSTObjectOutput.java:369)
        at org.nustaq.serialization.FSTObjectOutput.writeObjectFields(FSTObjectOutput.java:664)
        at org.nustaq.serialization.FSTObjectOutput.defaultWriteObject(FSTObjectOutput.java:546)
        at org.nustaq.serialization.FSTObjectOutput.writeObjectWithContext(FSTObjectOutput.java:458)
        at org.nustaq.serialization.FSTObjectOutput.writeObjectInternal(FSTObjectOutput.java:327)
        at org.nustaq.serialization.FSTObjectOutput.writeObject(FSTObjectOutput.java:294)
        at org.nustaq.serialization.FSTObjectOutput.writeObject(FSTObjectOutput.java:204)
        at org.nustaq.serialization.FSTConfiguration.asByteArray(FSTConfiguration.java:1182)
        at org.nustaq.serialization.FSTConfiguration.deepCopy(FSTConfiguration.java:1036)

Second case: 

import java.io.Serializable;
import java.sql.Timestamp;

public class SomeClassToSerializeWithTimestamp implements Serializable {

    private Timestamp type;

    public SomeClassToSerializeWithTimestamp(Timestamp type) {
        this.type = type;
    }
}   
SomeClassToSerializeWithTimestamp testObject = new SomeClassToSerializeWithTimestamp(new Timestamp(1645097693462L));
FSTConfiguration fstConfiguration = FSTConfiguration.createAndroidDefaultConfiguration();
SomeClassToSerializeWithTimestamp copy = fstConfiguration.deepCopy(testObject);

This time app threw exception:

Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Object java.lang.reflect.Field.get(java.lang.Object)' on a null object reference
     at org.nustaq.serialization.FSTClazzInfo$FSTFieldInfo.getObjectValue(FSTClazzInfo.java:873)
     at org.nustaq.serialization.FSTObjectOutput.writeObjectFields(FSTObjectOutput.java:660)
     at org.nustaq.serialization.FSTObjectOutput.writeObjectCompatibleRecursive(FSTObjectOutput.java:576)
     at org.nustaq.serialization.FSTObjectOutput.writeObjectCompatible(FSTObjectOutput.java:554)
     at org.nustaq.serialization.FSTObjectOutput.writeObjectWithContext(FSTObjectOutput.java:450)
     at org.nustaq.serialization.FSTObjectOutput.writeObjectWithContext(FSTObjectOutput.java:369)
     at org.nustaq.serialization.FSTObjectOutput.writeObjectFields(FSTObjectOutput.java:664)
     at org.nustaq.serialization.FSTObjectOutput.defaultWriteObject(FSTObjectOutput.java:546)
     at org.nustaq.serialization.FSTObjectOutput.writeObjectWithContext(FSTObjectOutput.java:458)
     at org.nustaq.serialization.FSTObjectOutput.writeObjectInternal(FSTObjectOutput.java:327)
     at org.nustaq.serialization.FSTObjectOutput.writeObject(FSTObjectOutput.java:294)
     at org.nustaq.serialization.FSTObjectOutput.writeObject(FSTObjectOutput.java:204)
     at org.nustaq.serialization.FSTConfiguration.asByteArray(FSTConfiguration.java:1182)
     at org.nustaq.serialization.FSTConfiguration.deepCopy(FSTConfiguration.java:1036)
bigsinger commented 1 year ago

me too

bigsinger commented 1 year ago

java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Object java.lang.reflect.Field.get(java.lang.Object)' on a null object reference at org.nustaq.serialization.FSTClazzInfo$FSTFieldInfo.getObjectValue(FSTClazzInfo.java:873) at org.nustaq.serialization.FSTObjectOutput.writeObjectFields(FSTObjectOutput.java:660) at org.nustaq.serialization.FSTObjectOutput$3.defaultWriteObject(FSTObjectOutput.java:916) at java.io.File.writeObject(File.java:2138) at java.lang.reflect.Method.invoke(Native Method) at org.nustaq.serialization.FSTObjectOutput.writeObjectCompatibleRecursive(FSTObjectOutput.java:566) at org.nustaq.serialization.FSTObjectOutput.writeObjectCompatible(FSTObjectOutput.java:554) at org.nustaq.serialization.FSTObjectOutput.writeObjectWithContext(FSTObjectOutput.java:450) at org.nustaq.serialization.FSTObjectOutput.writeObjectInternal(FSTObjectOutput.java:327) at org.nustaq.serialization.FSTObjectOutput.writeObject(FSTObjectOutput.java:294) at org.nustaq.serialization.FSTObjectOutput.writeObject(FSTObjectOutput.java:204) at org.nustaq.serialization.FSTConfiguration.asByteArray(FSTConfiguration.java:1182) at com.xsl.app.MainActivity.onCreate(MainActivity.java:48) at android.app.Activity.performCreate(Activity.java:8488) at android.app.Activity.performCreate(Activity.java:8461) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1343) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:4602) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4842) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:113) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:149) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:103) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2928) at android.os.Handler.dispatchMessage(Handler.java:117) at android.os.Looper.loopOnce(Looper.java:205) at android.os.Looper.loop(Looper.java:293) at android.app.ActivityThread.main(ActivityThread.java:9596) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:586) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1204)

simonpoole commented 1 year ago

I suspect the later issue is the same as what I mention here https://github.com/RuedigerMoeller/fast-serialization/issues/288