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Date: Wed, 01 Jun 2005 16:59:57 -0400
From: Bobby Lawrence <robertl@jlab.org>
Organization: Jefferson Lab (jlab.org)
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To: OJB Users List <ojb-user@db.apache.org>
Subject: Re: Incompatible class Exception
References: <429CDE9E.6030800@jlab.org> <429CE17B.7080203@apache.org>
 <429E0CE6.2010805@jlab.org> <429E11EB.2060407@apache.org>
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Well -
The OJB jar is not in the web-app classpath.
I have the jar in the EJB classpath.
I have removed it and I get the desired effect...the app server can't 
find the PersistenceBroker class.
When I use ANY version of > 1.0.1, I get this exception.
--Bobby

Armin Waibel wrote:

> Hi Bobby,
>
> Bobby Lawrence wrote:
>
>> OK - After upgrading to 1.0.3 and the newer version of the 
>> OJB.properties file, I am still getting the exception:
>>
>> java.io.InvalidClassException: 
>> org.apache.ojb.broker.util.collections.RemovalAwareCollection; local 
>> class incompatible: stream classdesc serialVersionUID = 
>> -7915096023416965226, local class serialVersionUID = 6853709708973269593
>>     at 
>> java.io.ObjectStreamClass.initNonProxy(Ljava.io.ObjectStreamClass;Ljava.lang.Class;Ljava.lang.ClassNotFoundException;Ljava.io.ObjectStreamClass;)V(Unknown 
>> Source)
>
>
> strange, seems that you have two different versions of class
> org.apache.ojb.broker.util.collections.RemovalAwareCollection
> in your classpath (this is what the exception asserted).
> Are you really sure that both OJB jars (web-app and appServer) are the 
> same? Could it be the case that the webApp or the appServer use some 
> kind of "jar-cache" that still use an outdated jar?
>
> regards,
> Armin
>
>
>
>>     at 
>> java.io.ObjectInputStream.readNonProxyDesc(Z)Ljava.io.ObjectStreamClass;(Unknown 
>> Source)
>>     at 
>> java.io.ObjectInputStream.readClassDesc(Z)Ljava.io.ObjectStreamClass;(Unknown 
>> Source)
>>     at 
>> java.io.ObjectInputStream.readOrdinaryObject(Z)Ljava.lang.Object;(Unknown 
>> Source)
>>     at 
>> java.io.ObjectInputStream.readObject0(Z)Ljava.lang.Object;(Unknown 
>> Source)
>>     at 
>> java.io.ObjectInputStream.readObject()Ljava.lang.Object;(Unknown Source)
>>     at 
>> weblogic.rmi.internal.CBVInputStream.readObjectInternal()Ljava.lang.Object;(CBVInputStream.java:67) 
>>
>>     at 
>> weblogic.rmi.internal.CBVInputStream.readObject()Ljava.lang.Object;(CBVInputStream.java:61) 
>>
>>     at 
>> weblogic.rmi.internal.ServerRequest.unmarshalReturn()Ljava.lang.Object;(ServerRequest.java:97) 
>>
>>
>> Any other ideas?
>> --Bobby
>>
>>
>> Martin Kal�n wrote:
>>
>>> Bobby Lawrence wrote:
>>>
>>>> I just upgraded from OJB 1.0.1 to 1.0.3 and I keep getting an
>>>>
>>>> java.io.InvalidClassException: 
>>>
>>>
>>>
>>> <snip/>
>>>
>>>> I have NOT changed my OJB.properties file, could this have 
>>>> something to do with it?
>>>
>>>
>>>
>>>
>>> Without looking to deeply into the stacktrace you sent;
>>> it is always recommended to upgrade OJB.properties and repository
>>> between releases. Please diff your old property file against the
>>> reference version from 1.0.3 and check if you need to adjust anything.
>>>
>>> For 1.0.1 => 1.0.3 this is especially true if you are using the ODMG 
>>> API.
>>>
>>> (Also not the required change of auto-* repository settings
>>> for ODMG in v1.0.3 -- see repository.dtd for full details.)
>>>
>>> Regards,
>>>  Martin
>>>
>>>
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>>
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-- 
----------------------------
Bobby Lawrence
MIS Application Developer

Jefferson Lab (www.jlab.org)

 Email: robertl@jlab.org
Office: (757) 269-5818
 Pager: (757) 584-5818
----------------------------


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