On 04/22/2011 07:42 AM, fo...@x9c.fr wrote:
> Le 21 avr. 2011 à 21:36, Rémi Forax a écrit :
>
>> On 04/21/2011 09:20 PM, fo...@x9c.fr wrote:
>>> Le 21 avr. 2011 à 19:07, John Rose a écrit :
>>>
>>>> On Apr 21, 2011, at 9:41 AM, fo...@x9c.fr wrote:
>>>>
>>>>> Thanks for the information.
>>>>> I wondered whether the EG had a "hidden" set of tests cases...
>>>> I think there are two "hidden" sets, neither of which are (AFAIK) open 
>>>> source:  There is an engineering group in Oracle which is developing JCK 
>>>> tests.  IBM's J9 group has their own implementation, which presumably has 
>>>> unit tests.  The EG as a whole has no access to these, though individual 
>>>> members do.
>>>>
>>>> The EG's workflow is pretty simple:  We discuss the API, and I push the 
>>>> decisions (and sometimes suggestions under discussion) into the Reference 
>>>> Implementation javadoc.  The RI is staged on the mlvm-dev patch repo, and 
>>>> then into OpenJDK.
>>>>
>>>> The reference implementation is in OpenJDK (7 not 6), which includes the 
>>>> unit tests Christian referred to.  They consist of JUnit files like 
>>>> "MethodHandlesTest.java".  Invokedynamic coverage goes through the 
>>>> "Indify" hack to generate the instructions from Java source.
>>>>
>>>> Beyond that, invokedynamic is exercised vigorously by the language 
>>>> implementations which are beginning to use it, such as JRuby.
>>> Ho, yes I perfectly understand the workflow and do find it legitimate.
>>> I was not worried about the quality of others' work, and I use the
>>> information from the Javadoc as amendments to the class file
>>> format. Everything is fine on this side.
>>>
>>>
>>> As the developer of a class file manipulation library, I would like to
>>> test it over ".class" files using various flavors of "invokedynamic"
>>> settings. Just to verify that the library can successfully load classes
>>> with "invokedynamic" instructions, associated attributes, and constant
>>> pool elements.
>>>
>>> Indeed, this is my work that I want to scrutinize!
>>>
>>>
>>> Regards,
>>>
>>> Xavier
>> Xavier,
>> you can use ASM to generate your tests and your lib to read them (or
>> vice versa).
> This is a possibility, hoping that the entry ticket to the ASM API is not to 
> high.
>
> While developing the code to read/write a JDK7 class file, I noticed what I 
> think
> is a typo on the 
> "http://download.java.net/jdk7/docs/api/java/lang/invoke/package-summary.html";
> page. The line:
>       u1 reference_kind;       // 1..8 (one of REF_invokeVirtual, etc.)
> should probably be:
>       u1 reference_kind;       // 1..9 (one of REF_invokeVirtual, etc.)
> unless interface methods are explicitly forbidden. In the latter case, what is
> the motive?

good catch !
it should be 1..9.

> Regards,
>
> Xavier

cheers,
Rémi

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