[vtkusers] Is VTK 5.10.1 compatible with MacOS 10.8.3 and Java?

Tue May 14 11:31:07 EDT 2013

According to the following post by someone from Oracle, Java 8 (and maybe
even Java 7 soon) will support both CALayer and NSView embedding.

http://mail.openjdk.java.net/pipermail/openjfx-dev/2013-January/005783.html

If that happens, then it might not be necessary to make any changes to VTK.

I haven't had a chance yet to try this, but would be interesting to see if
the Early Access releases of Java 8 work with VTK (
http://jdk8.java.net/download.html)

On Mon, May 13, 2013 at 5:23 PM, Sebastien Jourdain <
sebastien.jourdain at kitware.com> wrote:

> Hi Marco,
>
> you got it right and unfortunately VTK 6.0 won't have Java 7 support on OS
> X.
> This might happen later on, but it will certainly not happen when VTK 6.0
> get's out, specially as it is not a trivial fix.
>
> But if you want that to be done sooner, you can either contribute it or
> fund us to fix it.
>
> Seb
>
> On Mon, May 13, 2013 at 9:47 AM, Marco Sambin <m.sambin at gmail.com> wrote:
>
>> Hi Seb,
>>
>> thank you for your reply.
>>
>> Just to ensure I have the correct understanding, regarding my first
>> question below, the current build of VTK 6 is still incompatible with Java
>> 7 on Mac (according to my understanding, Java 7 on Mac uses CALayer JAWT
>> embedding, while Java 6 uses NSView-based JAWT embedding)?
>>
>> As far as the second point is concerned, yes, I am aware you can specify
>> the required JRE version (or versions) inside the JNLP launcher for a Java
>> Web Start application. But the reason why I asked the question is that I
>> was especially afraid that minor Java releases could break the
>> compatibility with VTK. If this was the case, then being able to specify
>> the JRE version wouldn't be enough to deliver an acceptable user
>> experience. In fact, suppose that I build and link VTK agains Java v7u21
>> and I ship my VTK-based Java Web Start application. Then, after a while
>> Java 7u22 comes out: if this broke the compatibility with VTK, I could
>> require Java v7u21 to my users, but where would they find it, when it has
>> become an old version?
>>
>> In any case, if only major Java releases may break this compatibility,
>> this should not be a big issue.
>>
>> On the other side, issue 1. (if present) is quite critical in my opinion,
>> and difficult to workaround. It may be a show-stopper for Java+VTK under
>> Mac, and this would be a real pity!
>>
>> Thanks again for your comments.
>> Best regards,
>>
>> Marco Sambin
>>
>>
>> On Sat, May 11, 2013 at 4:01 PM, Sebastien Jourdain <
>> sebastien.jourdain at kitware.com> wrote:
>>
>>> Hi Marco,
>>>
>>> I don't know about the first question, but for the second, I would think
>>> that the big version number might break compatibility at run time. But they
>>> might also work if the ABI didn't change...
>>>
>>> Regarding JavaWebStart you can be very precise on which JRE you want to
>>> run and even provide a set of compatible version.
>>>
>>> Seb
>>>
>>>
>>> On Sat, May 11, 2013 at 3:36 AM, Marco Sambin <m.sambin at gmail.com>wrote:
>>>
>>>>  Hi all.
>>>> I have a couple of questions in this regard:
>>>>
>>>> 1 - Will VTK 6 work with Java 7 on Mac OS X? According to my
>>>> experience, Oracle's JVM (v7) works much better than Apple's one (v6),
>>>> especially for web deployments (Java Web Start / Java Applet).
>>>>
>>>> 2 - How "sensitive" is VTK to the version of the JRE it is linked
>>>> against vs the version the application is run with? It must absolutely be
>>>> the SAME EXACT version? Or there is some "tolerance"? The crucial point is
>>>> the version of the jawt library? Or what else? I ask this question because
>>>> especially with web deployments (e.g., Java Web Start) it is very difficult
>>>> to control which exact JRE version the client is running.
>>>>
>>>> Thanks in advance for your comments.
>>>>
>>>> Regards,
>>>>
>>>> Marco
>>>>  Il giorno 11/mag/2013 04:57, "Sebastien Jourdain" <
>>>> sebastien.jourdain at kitware.com> ha scritto:
>>>>
>>>> Hi Simeon,
>>>>>
>>>>> I've just tried your code and everything worked as expected, no crash
>>>>> on my end.
>>>>> => OS X 10.8.3
>>>>> => Java 1.6.0_45
>>>>>
>>>>> I suspect your VTK build may link to a different version of Java than
>>>>> the one you run your application with.
>>>>>
>>>>> Seb
>>>>>
>>>>>
>>>>> On Fri, May 10, 2013 at 3:11 PM, Simeon Fitch <fitch at datamininglab.com
>>>>> > wrote:
>>>>>
>>>>>> Hi VTK fans,
>>>>>>
>>>>>> After prototyping some cool prototype visualizations with the help of
>>>>>> ParaView I'm attempting to implement them in an existing Java-based
>>>>>> engineering application. I have burned several couple days trying to get
>>>>>> some combination of VTK and Java to play nicely together on MacOS X,
>>>>>> running into issues ranging from detached rendering windows to core dumps
>>>>>> when trying to use vtkXMLUnstructuredGridReader.
>>>>>>
>>>>>> Since I have my client excited about using VTK after seeing the
>>>>>> ParaView results, I'm anxious to make a final determination as to whether
>>>>>> we can reliably make use of VTK in our engineering app or if I need to look
>>>>>> for other options. :-( I'm interesting in hearing from other's who've
>>>>>> successfully deployed Java-based VTK apps on MacOS X.
>>>>>>
>>>>>> I've attempted to use Java 6 and 7 (our app requires 7), as well as
>>>>>> VTK version 5.6, 5.8, 5.10.1, and the GitHub master. With Java 6, rendering
>>>>>> windows appear where they should, but appear as separate window entities
>>>>>> with Java 7. Putting that aside, all the combinations I've tried crash when
>>>>>> attempting to use vtkXMLUnstructuredGridReader and render the result. I've
>>>>>> tested with my own .vtu files as well as
>>>>>> the VTKData5.10.1/Data/quadraticTetra01.vtu
>>>>>>
>>>>>> The test code I'm using is here:
>>>>>> https://gist.github.com/metasim/5556435
>>>>>>
>>>>>>  The crash report is here:
>>>>>> https://gist.github.com/metasim/5556553
>>>>>>
>>>>>> I'd appreciate any advice on how to get a basic app working with
>>>>>> modern versions of Java and MacOS X, or at least how to help debug and fix
>>>>>> the C++ code. I've attempted attaching Xcode to the running process and had
>>>>>> cases when it crashes in either vtkDataSet::GetBounds() or
>>>>>> vtkXMLReaderJava::Java_vtk_vtkXMLReader_SetFileName_12() (the latter in the
>>>>>> call to op->SetFileName()). Given the seeming benign nature of the crash
>>>>>> sites, I suspect memory corruption has occurred before then. I tried
>>>>>> running with the following environment variables set, but that didn't
>>>>>> render any additional useful info:
>>>>>>
>>>>>> * DYLD_INSERT_LIBRARIES=/usr/lib/libgmalloc.dylib
>>>>>> * MallocGuardEdges=1
>>>>>> * MallocScribble=1
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> Simeon
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
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>>>>>
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>>>
>>
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>
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