Re: [Jdbm-developer] Help with a class cast exception in JDBM code

[Alex B. <boi...@in...>]

ClassCastException is unlikely if you're using the BTree correctly.

Some ideas/thoughts to get you started debugging:

* If your code manipulates records using recids directly, double-check 
your program logic to make sure you are not mistakenly overwriting some 
previously allocated BTree records.

* If your application has multiple classloaders, make sure objects are 
reloaded in the appropriate context.

alex


Brian Mason wrote:
> I not really new to JDBM but I have a problem I have never seen before.
> I am inserting records into a JDBM data base, after a few inserts to a
> tree, I get a class cast exception.  The cast is down in JDBM code.
> I insert a series of records into a several trees.  It does not seem
> to matter which tree I am inserting into.  I have tried commenting out
> all but one, I can vary which tree I am inserting to but it does not
> matter, after a few inserts, I will get a class cast exception
> Any one have any experiance with this???
> 	at jdbm.btree.BPage.loadBPage(BPage.java:826)
> 	at jdbm.btree.BPage.insert(BPage.java:446)
> 	at jdbm.btree.BPage.insert(BPage.java:356)
> 	at jdbm.btree.BTree.insert(BTree.java:322)
>
>
> Thanks,
> Brian Mason
> br...@ga...
>
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