RFR [jcov, unfilled]: jcov does not instrument files with NestHost/NestMembers attributes
Jonathan Gibbons
jonathan.gibbons at oracle.com
Wed Oct 10 16:15:53 UTC 2018
Jan, Leonid,
Given that Leonid has requested that these changes should be pushed, I
will push them later today.
-- Jon
On 10/10/18 5:19 AM, Jan Lahoda wrote:
> Hello,
>
> I apologize, I forgot to do this. I've filled:
> https://bugs.openjdk.java.net/browse/CODETOOLS-7902334
> (for the NestHost problem)
> https://bugs.openjdk.java.net/browse/CODETOOLS-7902335
> (for enhancing the build script with tests)
>
> And put patches that might be suitable for commit here, respectivelly:
> http://cr.openjdk.java.net/~jlahoda/jcov-nesthost/webrev.allow.nesthost.00/7902334
>
>
> http://cr.openjdk.java.net/~jlahoda/jcov-nesthost/webrev.test.00/7902335
>
> I am not a committer on the code-tools project, so I'd like to ask if
> Jon could take a look whether it is fine to apply these commits.
>
> Thanks,
> Jan
>
> On 9.10.2018 18:52, Leonid Kuskov wrote:
>> Hi Jan,
>>
>> Could you please file the bug and apply your changes to
>> http://hg.openjdk.java.net/code-tools/jcov/.
>> I need to switch jcov to the next version of asm and upload couple fixes
>> that needed for JCK.
>> This is best done after your fixes.
>>
>> Thanks,
>> Leonid
>>
>>
>> On 8/7/18 08:25, Jan Lahoda wrote:
>>> Hi,
>>>
>>> It seems that jcov cannot instrument files with NestHost/NestMembers
>>> attributes (JDK 11 classfiles), and silently uses the original
>>> version. The reason appears to be that even though it uses ASM 6.2,
>>> which knows about those attributes, the visitors are using "ASM6"
>>> compatibility flag, which does not support these attributes.
>>>
>>> My proposal here is to upgrade the compatibility flag to
>>> "ASM7_EXPERIMENTAL" compatibility level. It might be better to define
>>> a constant for the compatibility level constant, so that on next
>>> upgrade, we don't need to modify so many files. The proposed patch is
>>> here:
>>> http://cr.openjdk.java.net/~jlahoda/jcov-nesthost/webrev.allow.nesthost.00/
>>>
>>>
>>>
>>> Also, we could enhance the build script to allow running tests:
>>> http://cr.openjdk.java.net/~jlahoda/jcov-nesthost/webrev.test.00/
>>>
>>> If these would seem to go in a reasonable direction, I'll file bugs.
>>> It may be necessary to do a few more changes to support JDK 12
>>> classfiles.
>>>
>>> Any feedback is welcome!
>>>
>>> Thanks,
>>> Jan
>>
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