Re: Big problems with NodeTreeMap

On Tue, 2005-07-05 at 10:20 +0200, Thomas Dingler wrote:
> Hi,
> 
> I used NodeTreeMap in my database and after huge usage of these,  
> errors come up:
> 
> If I try to copy the data to a HashMap:
> 
> java.lang.ClassCastException
>      at  
> org.ozoneDB.collections._NodeTreeMap_OzoneNodeImpl_Proxy.equals 
> (_NodeTreeMap_OzoneNodeImpl_Proxy.java:417)
>      at org.ozoneDB.collections._BaseTreeMap_TreeIterator.hasNext 
> (_BaseTreeMap_TreeIterator.java:137)
>      at java.util.HashMap.putAllForCreate(HashMap.java:423)
> 
> 
> If I try to access the entrySet().iterator().next():
> 
> 
> java.lang.ClassCastException
>      at  
> org.ozoneDB.collections._NodeTreeMap_OzoneNodeImpl_Proxy.equals 
> (_NodeTreeMap_OzoneNodeImpl_Proxy.java:417)
>      at org.ozoneDB.collections._BaseTreeMap_TreeIterator.hasNext 
> (_BaseTreeMap_TreeIterator.java:137)
> 
> 
> It seems, that the nodes of the map "lost" their ozone object of the  
> next node, because the class cast expections are pointing to my  
> stored ozone objects. #
> So I think the tree nodes are using a wrong object id and so a tree  
> node points not to an other tree node, but to a "normal" ozone object.

Hmmm. The tree nodes have no knowledge of object ids; they more or less
behave ozone-agnostic.

> The error occurs sometimes, not reproducable for me, but only when I  
> use large NodeTreeMaps.
> 
> Should I submit a bug report?

Yes please, preferably with code that always reproduces the problem.

Cheers,
Leo




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