Putting on his big shoes ...

HashMap is not syncnronized, possible another thread is modifing the 
HashMap?
or
You are modifing the set inside the loop?

marc fleury wrote:

> So I just spent 2 hours spotting the following interesting bug
> 
> HashMap deployments ...
> 
> Iterator it = deployments.keySet().iterator();
> 
> while (it.hasNext());
> {
>  do something();
> }
> 
> which would peg my CPU at 100% and never reach do something ...
> 
> man I am a clown... can you see it? 2 hours!
> 
> marcf
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