[vtk-developers] dashboard failure with Java wrapping and Obj-C++?

[Chris Harris]

I have rewritten the CMakeLists.txt that compiles the Java classes. It
solves the parallel build issue and also simplifies the way we build
our Java classes. See the following topic:

http://review.source.kitware.com/#/t/430/

Regards,

Chris

On Mon, Apr 16, 2012 at 12:08 PM, David Gobbi <david.gobbi at gmail.com> wrote:
> Hi Chris,
>
> That's the thing... I don't know which ones don't match.  But from the
> symptoms of the failure, I think that a mismatch is probably present
> somewhere.
>
> Every custom command that uses javac (i.e. ${JAVA_COMPILE}) should
> probably be checked.  It isn't 100% clear to me where javac puts its
> output.  For example, when javac is given an output directory, it
> isn't obvious whether it puts the .class in that directory or whether
> it sometimes puts the class in a subdirectory.  The javac man pages
> will have to be consulted, and maybe some experiments done.
>
>  - David
>
>
>
> On Mon, Apr 16, 2012 at 9:54 AM, Chris Harris <chris.harris at kitware.com> wrote:
>> David,
>>
>> Can you give me an example of one of the OUTPUTS that don't match the
>> actual location?
>>
>> Thanks,
>>
>> Chris
>>
>> On Mon, Apr 16, 2012 at 9:22 AM, Chris Harris <chris.harris at kitware.com> wrote:
>>> I can take a look at this.
>>>
>>> Chris
>>>
>>> On Fri, Apr 13, 2012 at 6:36 PM, David Gobbi <david.gobbi at gmail.com> wrote:
>>>> On Fri, Apr 13, 2012 at 10:48 AM, David Gobbi <david.gobbi at gmail.com> wrote:
>>>>> On Fri, Apr 13, 2012 at 9:18 AM, Marcus D. Hanwell
>>>>> <marcus.hanwell at kitware.com> wrote:
>>>>>
>>>>>> That looks like the parallel build issues we have been seeing. You
>>>>>> could confirm by running make in that build tree a second time, this
>>>>>> was fragile and I think modularization has caused some of the duct
>>>>>> tape to fray. We would appreciate help if anyone knows the Java
>>>>>> wrapping/parallel build issues.
>>>>>
>>>>> I located this previous fix for the java parallel build issue.  I'm
>>>>> not 100% certain what the problem was.
>>>>> http://vtk.org/gitweb?p=VTK.git;a=commit;h=875f8232
>>>>
>>>> I suspect that part of the problem is that for several of the java
>>>> add_custom_command lines in Wrapping/Java/CMakeLists.txt
>>>> (and perhaps elsewhere), the OUTPUTS does not match the
>>>> actual location of the output file generated by javac.  Someone
>>>> should go through the cmake files and verify that each one of
>>>> these custom commands is correct.
>>>>
>>>> This would explain another problem that I've seen with the
>>>> java compile: sometimes when I do "make", I see java files
>>>> being compiled that have nothing to do with the changes that
>>>> I've made.  Pointless re-execution of commands suggests
>>>> that the OUTPUTS file wasn't actually generated (or was
>>>> generated, but put in the wrong directory).
>>>>
>>>>  - David