StackOverflowError serializing an object in java (Android 4.4)

Question

My android app needs to serialize an object (RowCreation) to transmit it over the network. Obvisously the object class implements the Serializable interface. The class has the following structure:

    public class RowCreation extends ClientSyncRequest {

    private static final long serialVersionUID = 10001243L;


    public int localID;
    public int entity;
    public Hashtable attributes = new Hashtable();
    public byte[] bytes;
    public long time = 0;
    public String md5CheckSum;
}

public class ClientSyncRequest extends SyncMessage {

        private static final long serialVersionUID = 10001246L;


        public int id = 0;

        public int getId(){

            return this.id;

        }
    }




public class SyncMessage implements Serializable{

     private static final long serialVersionUID = 10001231L;


}

It happens that one of the app users reported a bug today, When I saw the stacktrace on the google play console was the StackOverflowError:

java.lang.StackOverflowError
at java.io.ObjectStreamClass.lookupStreamClass(ObjectStreamClass.java:1064)
at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:1035)
at java.io.ObjectStreamClass.createClassDesc(ObjectStreamClass.java:248)
at java.io.ObjectStreamClass.lookupStreamClass(ObjectStreamClass.java:1067)
at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:1035)
at java.io.ObjectStreamClass.createClassDesc(ObjectStreamClass.java:248)
at java.io.ObjectStreamClass.lookupStreamClass(ObjectStreamClass.java:1067)
at java.io.ObjectOutputStream.writeObjectInternal(ObjectOutputStream.java:1574)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1517)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1481)
at java.util.Hashtable.writeObject(Hashtable.java:1079)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at java.io.ObjectOutputStream.writeHierarchy(ObjectOutputStream.java:1053)
at java.io.ObjectOutputStream.writeNewObject(ObjectOutputStream.java:1404)
at java.io.ObjectOutputStream.writeObjectInternal(ObjectOutputStream.java:1671)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1517)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1481)
at java.io.ObjectOutputStream.writeFieldValues(ObjectOutputStream.java:979)
at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:368)
at java.io.ObjectOutputStream.writeHierarchy(ObjectOutputStream.java:1074)
at java.io.ObjectOutputStream.writeNewObject(ObjectOutputStream.java:1404)
at java.io.ObjectOutputStream.writeObjectInternal(ObjectOutputStream.java:1671)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1517)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1481)

You are seeing a Hashtable.writeObject in the stack trace; maybe somehow you are taking too many objects. One possibility might be an inner non-static class. Or a somewhat recursive data structure. — Joop Eggen, Aug 25 '15 at 09:19

StackOverflowError serializing an object in java (Android 4.4)

0 Answers0