Request for review (XXS): JDK-8004066: TEST_BUG: test/java/lang/Math/ assumes ArithmeticException message

Krystal Mo at
Sun Dec 2 19:36:45 UTC 2012

Hi Alan and core-libs-dev,

Thanks for the review. I've taken your advise and updated the webrev:

Could you please review the updated version?

Also, could anybody from the JDK side sponsor this change, please?


On 12/01/2012 11:54 PM, Alan Bateman wrote:
> On 30/11/2012 18:48, Krystal Mo wrote:
>> Hi all,
>> Could I get a couple of review for this small change, please?
>> And could someone from the JDK side sponsor this change?
>> Bug:
>> Webrev:
>> The DivModTest introduced in JDK-6282196 [1] checks the contents of 
>> the exception message, but that message isn't specified in JavaDoc 
>> and thus may vary between VM implementations (or even in the same VM).
> It looks okay to me, I assume testIntFloorDivMod() could also be 
> changed to create the ArithmeticException with the no-arg constructor 
> as the exception message will no longer be tested.
> Just a general point, the tests in the jdk repository are not 
> conformance tests and so it is okay (and normal) for these tests to 
> exercise highly implementation-specific behavior. They are expected to 
> be updated and always in sync with the JDK code. Clearly checking 
> exception messages will a bit fragile, more so in this this case as 
> the exception messages are coming from the VM.
> -Alan.

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