Re: throw null investigation
On 7/18/12 4:00 PM, Daniel Pitts wrote:
On 7/18/12 3:55 PM, markspace wrote:
On 7/18/2012 3:06 PM, Daniele Futtorovic wrote:
But if what you say is correct, and Java does /not/ systematically wrap
nulls "thrown" from JNI (assuming it's possible), then it would be
technically possible to catch a null Exception in the Java runtime,
I want to emphasize there than I'm speculating and extrapolating from
barely remembered blogs. It's something for the OP to consider, but
he's going to have to decide if I'm talking rubbish or not.
Executive summary: I dunno.
Lets check the JLS...
Actually, the JLS doesn't seem to handle this, but the JNI spec does:
The JNI does not check for programming errors such as passing in NULL pointers or illegal argument types.
The programmer must not pass illegal pointers or arguments of the wrong type to JNI functions. Doing so could result in arbitrary consequences, including a corrupted system state or VM crash.
It seems to me then, if the JNI code is passing NULL to "Throw" or
"ThrowNew", it is "undefined" behavior.
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