Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.java.programmer > #16084

Re: throw null investigation

Show all headers | View raw

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?

Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

throw null investigation bob smith <bob@coolfone.comze.com> - 2012-07-18 10:10 -0700
  Re: throw null investigation Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-07-18 12:39 -0700
    Re: throw null investigation markspace <-@.> - 2012-07-18 13:35 -0700
      Re: throw null investigation Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2012-07-18 23:33 +0200
        Re: throw null investigation markspace <-@.> - 2012-07-18 14:43 -0700
          Re: throw null investigation Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2012-07-19 00:06 +0200
            Re: throw null investigation markspace <-@.> - 2012-07-18 15:55 -0700
              Re: throw null investigation Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-07-18 16:00 -0700
                Re: throw null investigation Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-07-18 16:16 -0700
  Re: throw null investigation Roedy Green <see_website@mindprod.com.invalid> - 2012-07-18 17:09 -0700

csiph-web