Marshalling error "No suitable constructor could be found"

[arwdev]

Hello,

I've just started using Infinispan for HTTP session clustering and I'm getting a serialization error:

aused by: java.io.InvalidClassException: org.eclipse.jetty.security.authentication.SessionAuthentication; No suitable constructor could be found

at org.jboss.marshalling.reflect.ReflectiveCreator.getCachedConstructor(ReflectiveCreator.java:93)

at org.jboss.marshalling.reflect.ReflectiveCreator.create(ReflectiveCreator.java:105)

at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1211)

at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:270)

at org.jboss.marshalling.river.BlockUnmarshaller.readObject(BlockUnmarshaller.java:152)

at org.jboss.marshalling.river.BlockUnmarshaller.readObject(BlockUnmarshaller.java:138)

at org.jboss.marshalling.MarshallerObjectInputStream.readObjectOverride(MarshallerObjectInputStream.java:57)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:344)

Caused by: java.io.InvalidClassException: org.eclipse.jetty.security.authentication.SessionAuthentication; No suitable constructor could be found

at org.jboss.marshalling.reflect.ReflectiveCreator.getCachedConstructor(ReflectiveCreator.java:93)

at org.jboss.marshalling.reflect.ReflectiveCreator.create(ReflectiveCreator.java:105)

at org.jboss.marshalling.river.RiverUnmarshaller.doReadNewObject(RiverUnmarshaller.java:1211)

at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:270)

at org.jboss.marshalling.river.BlockUnmarshaller.readObject(BlockUnmarshaller.java:152)

at org.jboss.marshalling.river.BlockUnmarshaller.readObject(BlockUnmarshaller.java:138)

at org.jboss.marshalling.MarshallerObjectInputStream.readObjectOverride(MarshallerObjectInputStream.java:57)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:344)

        ...

I'm guessing this is happening because the SessionAuthentication class has no default constructor, but that seems like it may be the case for a great many classes that implement their own serialization. Is there any way around this issue?

Thanks!

Andy

[galder.zamarreno]

Depends on how you implement your own serialization . What does this class look like? Do you have the source code available for the version of the class you're using?

[arwdev]

Hey Galder,

Thanks for the reply! The class in question is this: http://dev.eclipse.org/svnroot/rt/org.eclipse.jetty/jetty/trunk/jetty-security/src/main/java/org/eclipse/jetty/security/authentication/SessionAuthentication.java.

I've gone ahead and implemented my own Jetty SessionManager with an implementation of this class that has a no-arg constructor and it works fine, so really my question is "should you be able to store serializable objects without a no-arg constructor in Infinispan?"

Thanks!

Andy

[galder.zamarreno]

Yup, an empty constructor is needed cos the two possible avenues right now require it:

http://download.oracle.com/javase/6/docs/api/java/io/Serializable.html

http://download.oracle.com/javase/6/docs/api/java/io/Externalizable.html