[vtkusers] VTK Java problem

[Jeff Lee]

Here's my cut at ImagePlaneWidget, there are definitely some issues in 
java if the 3dWidget doesn't belong to vtkCanvas.  I re-arranged your 
code and it works for me - don't forget to change the path to VTKData 
back to your path...  Let me know if it works or not.  If you need more 
explanation, let me know.
-Jeff

Blezek, Daniel J (Research) wrote:

>Hi all,
>
>  I've started experimenting with Java and VTK.  Unfortunately, I'm getting segfaults when running,
>and I think they pertain to threads.  When I run the attached ImagePlaneWidget code: the window comes
>up correctly, and I can manipulate the widget to my heart's content.  However, when I resize the
>window and manipulate the widget, I get this output from GDB:
>
># An unexpected exception has been detected in native code outside the VM.# Program
>counter=0x4a7467f4
>#
># Problematic Thread: prio=1 tid=0x8143808 nid=0x4490 runnable 
>#
>
>Program received signal SIGABRT, Aborted.
>0x4049fb75 in sigsuspend () from /lib/libc.so.6
>(gdb) bt
>#0  0x4049fb75 in sigsuspend () from /lib/libc.so.6
>#1  0x4003db79 in pthread_setconcurrency () at eval.c:41
>#2  0x40039ddc in pthread_cond_wait () at eval.c:41
>#3  0x401e8e3e in Monitor::wait () at eval.c:41
>#4  0x402214f8 in Threads::destroy_vm () at eval.c:41
>#5  0x40198f0d in jni_DestroyJavaVM () at eval.c:41
>#6  0x08049385 in main () at eval.c:41
>#7  0x4048d5d7 in __libc_start_main () from /lib/libc.so.6
>
>The ImagePlaneWidget.java code is an adaptation of the ImagePlane.tcl example.  Things are moving in
>the right direction, this did not even run a few weeks ago...
>
>Open for suggestions,
>-dan
>
>P.S.  To compile this code, you'll neeed the latest and greatest Wrapping/Java/vtk/*.java
>
>--
>Daniel Blezek, Ph.D.
>blezek at crd.ge.com
>Visualization and Computer Vision Lab, Imaging Technologies
>GE Global Research Center
> <<ImagePlaneWidget.java>> 
>
>  
>
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