[jboss-dev-forums] [Design of JBoss Serialization] - What should I create to frequently ask it for smart clones??

[elijah.epifanov@gmail.com]

Which class encapsulates all data needed to recreate smart clone for a particular object?

The main idea is to reuse final objects pool and recreate smart clones not from raw bytes.

I tried DataContainer, but its DataContainerInput isn't thread safe and occasionally throws this:

Exception in thread "Thread-24" java.lang.RuntimeException: java.io.IOException
 ....
Caused by: java.io.IOException
	at org.jboss.serial.persister.RegularObjectPersister.readSlotWithMethod(RegularObjectPersister.java:103)
	at org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.java:250)
	at org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:228)
	at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:339)
	at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:63)
	at org.jboss.serial.objectmetamodel.DataContainer$DataContainerInput.readObject(DataContainer.java:735)
	at org.jboss.serial.persister.RegularObjectPersister.readSlotWithFields(RegularObjectPersister.java:302)
	at org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.java:252)
	at org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:228)
	at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:339)
	at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:63)
	at org.jboss.serial.objectmetamodel.DataContainer$DataContainerInput.readObject(DataContainer.java:735)
	at ws.xmart.dynamic.JBossSmartCloningFilter.restore(JBossSmartCloningFilter.java:35)
	... 4 more
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:585)
	at org.jboss.serial.persister.RegularObjectPersister.readSlotWithMethod(RegularObjectPersister.java:97)
	... 16 more
Caused by: java.io.EOFException: Unexpected end of repository
	at org.jboss.serial.objectmetamodel.DataContainer$DataContainerInput.moveNext(DataContainer.java:724)
	at org.jboss.serial.objectmetamodel.DataContainer$DataContainerInput.readInt(DataContainer.java:903)
	at org.jboss.serial.persister.RegularObjectPersister.readSlotWithFields(RegularObjectPersister.java:282)
	at org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.java:252)
	at org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:228)
	at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:339)
	at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:63)
	at org.jboss.serial.objectmetamodel.DataContainer$DataContainerInput.readObject(DataContainer.java:735)
	at org.jboss.serial.persister.RegularObjectPersister.readSlotWithFields(RegularObjectPersister.java:302)
	at org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.java:252)
	at org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:228)
	at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:339)
	at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:63)
	at org.jboss.serial.objectmetamodel.DataContainer$DataContainerInput.readObject(DataContainer.java:735)
	at org.jboss.serial.persister.ArrayPersister.readObjectArray(ArrayPersister.java:217)
	at org.jboss.serial.persister.ArrayPersister.readData(ArrayPersister.java:196)
	at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:339)
	at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:63)
	at org.jboss.serial.objectmetamodel.DataContainer$DataContainerInput.readObject(DataContainer.java:735)
	at org.jboss.serial.persister.RegularObjectPersister.readSlotWithFields(RegularObjectPersister.java:302)
	at org.jboss.serial.persister.ObjectInputStreamProxy.defaultReadObject(ObjectInputStreamProxy.java:72)
	at java.util.concurrent.ConcurrentHashMap.readObject(ConcurrentHashMap.java:1399)
	... 20 more


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