[vtkusers] VTK Java problem

Tue Aug 27 10:39:59 EDT 2002

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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end