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From "Mark Struberg (JIRA)" <j...@apache.org>
Subject [jira] Created: (OPENJPA-1900) ClassCastException when serializing an entity if DetachedStateField=true
Date Tue, 30 Nov 2010 09:21:11 GMT
ClassCastException when serializing an entity if DetachedStateField=true
------------------------------------------------------------------------

                 Key: OPENJPA-1900
                 URL: https://issues.apache.org/jira/browse/OPENJPA-1900
             Project: OpenJPA
          Issue Type: Bug
          Components: kernel
    Affects Versions: 2.0.1, 2.1.0
            Reporter: Mark Struberg
             Fix For: 2.1.0


When using 

<property name="openjpa.DetachState" value="fetch-groups(DetachedStateField=true)"/>

serializing an entity leads to the following Exception:

java.lang.ClassCastException: org.apache.openjpa.kernel.StateManagerImpl cannot be cast to
org.apache.openjpa.kernel.DetachedStateManager
	at org.apache.openjpa.util.Proxies.writeReplace(Proxies.java:147)
	at org.apache.openjpa.util.java$util$Date$proxy.writeReplace(Unknown Source)
	at sun.reflect.GeneratedMethodAccessor176.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at java.io.ObjectStreamClass.invokeWriteReplace(ObjectStreamClass.java:1032)
	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1107)
	at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
	at org.apache.openjpa.kernel.SingleFieldManager.serialize(SingleFieldManager.java:545)
	at org.apache.openjpa.kernel.StateManagerImpl.writeDetached(StateManagerImpl.java:1478)
	at at.ac.tuwien.tiss.curriculum.be.entities.CurriculumVersion.writeExternal(CurriculumVersion.java)
	at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1421)

This seems related to OPENJPA-1597

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