Re: Seeming Non-determinism in Java Programs

On Sunday 06 April 2008 20:05, Ray Tayek wrote:
> At 06:04 PM 4/6/2008, you wrote:
> >...
> >But as far as I know (and certainly as I intended), no class whose
> >instances are stored in hashed structures rely on the default
> >implementation of hashCode(). That implementation is only congruent
> >with the default implementation of equals() as instance identity. I
> >never overload one of those without overloading the other, so this
> >should not be an explanation for what I'm seeing (thus leading to my
> >perplexity).
>
> if you have overridden hashCode and equals, make sure you are not
> modifying any properties that change the hashcode after the object is
> in the collection or map.

Yeah. I've thought of that, too.

I can't say I can guarantee all these things are correct, but I've
scrutinized the code and cannot find any problems.


Randall Schulz

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