I can encounter NullPointer in that place, is it OK?

[beep_beep]

Here I check whether node exist or not

if(node==null){
 node = rootNode.addChild(someFqn);
}

and here I put object into the node:

node.put(key, obj);

But what if eviction happened between those 2 parts of code?

How can I defend myself agains NullPointerException?

Please,suggest, what is best practice, excluding try/catch...?

Thanks!
Peter.

[manik]

Right now node.put() will throw a NodeNotValidException if the node has been evicted or invalidated. We are discussing how best to deal with this transparently - see the following mail list thread:

http://lists.jboss.org/pipermail/jbosscache-dev/2008-May/002262.html

[beep_beep]

nice,ok, but would do it checked.
otherwise I have no indication, that I can be broken by that.
:)
Thanks otherwise, good to know!