Re: db4o11-7.4 AbstractMethodError

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On 08/09/2012 05:48 PM, Dennis Nezic wrote:
> What's causing this?
> 
>> jvm 1    | WrapperManager Error: Error in WrapperListener.start
>> callback.java.lang.AbstractMethodError: 
>> com.db4o.internal.query.ObjectSetFacade.iterator()Ljava/util/Iterator;
>>
>> 
jvm 1    | WrapperManager Error: java.lang.AbstractMethodError:
>> com.db4o.internal.query.ObjectSetFacade.iterator()Ljava/util/Iterator;
>>
>> 
jvm 1    | WrapperManager Error: at
freenet.client.async.PersistentStatsPutter.restorePreviousData(PersistentStatsPutter.java:44)
>> jvm 1    | WrapperManager Error: at
>> freenet.node.NodeClientCore.<init>(NodeClientCore.java:224) jvm 1
>> | WrapperManager Error: at
>> freenet.node.Node.<init>(Node.java:1745) jvm 1    |
>> WrapperManager Error: at
>> freenet.node.NodeStarter.start(NodeStarter.java:175) jvm 1    |
>> WrapperManager Error: at
>> org.tanukisoftware.wrapper.WrapperManager$11.run(WrapperManager.java:4006)
>>
>> 
jvm 1    | Shutting down...
> 
> Recompiling build1407, which worked for me before, no longer
> works. Nor the newer builds. Recompiling with sun-jdk and
> icedtea-bin doesn't make a difference. Recompiling
> java-service-wrapper, all the db4o deps, ant made no difference.
> 
> Double-u Tee Eff?

My guess is that this is caused by a corrupt node.db4o(.crypt). Could
you try moving it to node.db4o_old or something and starting the node
again? This would mean losing your download and upload queues, as well
as FlogHelper database. For future reference, item 4 on this list [1]
gives instructions on backing up the node database and associated files.

[1]
https://wiki.freenetproject.org/Using_Freenet#Backup.2C_backup.2C_backup.21
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