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Subject: Re: throw null investigation
Date: Wed, 18 Jul 2012 13:35:46 -0700
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On 7/18/2012 12:39 PM, Daniel Pitts wrote:
> On 7/18/12 10:10 AM, bob smith wrote:
>> Is it common practice to throw a null exception when writing JNI code?
>>
>> I'm seeing an exception that is simply a null rather than an object,
>> and I'm wondering if it's because it's easier to do that in JNI.
>>
>  From what I can tell, that shouldn't ever happen. I'm not sure in JNI,
> but I know in Java if you throw a "null", it will instead throw a
> NullPointerException, so anyone catching that Throwable will not see a
> "null" value, but instead a NullPointerException instance.
>


In Java, yes.  But in JNI, in C, I'd expect it is possible to literally 
throw an empty or null pointer.

I'd also expect that any code that did that was sub-par, and not worth 
using or debugging.

I'm mildly interested in what the OP is using, mostly so I can avoid it. 
  However if he can supply some details (*what* are you using, Bob?) I'd 
consider taking a loot at it.  The actually question he asks: "Is it 
common practice," I don't really know or care.  It seems bad practice, 
but I've never dealt with JNI code, so what do I know?