Stackoverflow on Writing Generics class

[Rahul Sharma]

Hi,

We are trying to serialize a generics class object using  Kryo 2.24. We invoke FieldSerializer write method to do the same :

void write (Kryo kryo, Output output, T object)

We are experiencing StackOverflowError error while doing so.

java.lang.StackOverflowError

at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:43)

at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:44)

at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:44)

at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:44)

at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:44)

at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:44)

at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:44)

at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:44)

at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:44)

We have found out that the error occurs because the FieldSerialzer calls pushGenericScope() on Kryo.  Now, if Kyro is containing the same instance of genericScope, the call would set a Generics object which is having itself as the parent i.e. a cyclic genericScope. If we call a getConcreteClass() on this Generics objects it results in java.lang.StackOverflowError error.

regards,

Rahul 

[Dijkstra Gurgaon]

Hi

I am facing the same issue, were you able to resolve it??

[Martin Grotzke]

Looks like the issue reported here: https://github.com/EsotericSoftware/kryo/issues/341

Can you confirm this?

Cheers,
Martin

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