[Insight-users] Re: Exception Access Violation w/ java bindings

[Blair Cruz]

Never mind, I figured it out.  I had to create a itkImageF3_Pointer with the
original itkImageF3 to access the data.

On 1/18/07, Blair Cruz <blair.cruz at gmail.com> wrote:
>
> Hello All,
> I'm running ITK with the Java bindings to do some registration in a Java
> application I'm developing.  I'm running into an EXCEPTION_ACCESS_VIOLATION
> when using the Java bindings.  Here is whats happening.
>
> I create two itkImportImageFilterF3_Pointer objects for the fixedImage and
> movingImage.  I populate these objects with the image data I need to
> register.  I then create the code to do the registration and pass the
> filters to it.  Eventually, I get back a itkImageF3 by calling:
>
> itkResampleImageFilterF3F3_Pointer.GetOutput()  (by calling the instance
> of the resampling filter)
>
> Then with the itkImageF3 object I read the data out of it.  I do that by
> calling:
>
> output.GetPixel(itkindex3_1 )
>
> Where output us the itkImageF3 I get back from the resampling filter.  I
> can do this consistantly with no problems unless I allocate a large array to
> read into before I read the data from the itkImageF3.  If I allocate a large
> array anytime before I read the itkImageF3 I get the
> EXCEPTION_ACCESS_VIOLATION.  With the large array allocated ITK will step on
> my memory.  It's also random  when it blows up, sometimes  reading 6 or 600
> pixel values out of  the itkImageF3.
>
> I also get the exceptions if I create the itkImageF3 object and write
> image data to it, then read it out right after.
>
> I have been able to successfully read all the pixel values out of the
> registered itkImageF3 and display them to verify that the image was
> registering.  I did this with a small class that I developed the
> registration code with.  Once I moved it to the real application I get the
> exceptions.
>
> I'm in desperate need of help with this.  I need to get cross platform
> registration working in my application and this appears to be the way to do
> it.  Please let me know if you can help me on this issue.
>
> Here is the exception I'm getting:
>
> #
> # An unexpected error has been detected by HotSpot Virtual Machine:
> #
> #  EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x0b671da3, pid=8748,
> tid=9484
> #
> # Java VM: Java HotSpot(TM) Client VM ( 1.5.0_04-b05 mixed mode)
> # Problematic frame:
> # C  [ITKCommonAJava.dll+0x241da3]
> #
> # An error report file with more information is saved as
> hs_err_pid8748.log
> #
> # If you would like to submit a bug report, please visit:
> #   http://java.sun.com/webapps/bugreport/crash.jsp
> #
>
> Platform: WIndows XP SP2
> JVM: 1.5.0_04-b05
>
> Thanks,
> Blair Cruz
>
>
>
>
>
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