Re: [Plplot-general] Java / JVM Exception

[Alan W. I. <ir...@be...>]

On 2004-11-08 09:41-0500 so...@sy... wrote:

> When I open multiple plots using PLStream on Windows using Java, I get
funny behaviour. If I close couple of windows, I get the JVM crash with
following error messages.

> An unexpected exception has been detected in native code outside the VM.
> Unexpected Signal : EXCEPTION_ACCESS_VIOLATION (0xc0000005) occurred at PC=0x1D6F34FF
[...]

Hi Ali:

Thanks for your report.

I suspect this is a memory management problem for the particular pattern of
plplot calls that you are using. Does the same error occur for the
postscript device?  If so, then it is probably an error in the core of
plplot that we might be able to reproduce for the Java/Linux platform.  If
you cannot reproduce the error for the postscript device, then it is
probably a memory management error in the special interactive device you use
on the windows platform, and you (or Arjen) might be able to reproduce it in
C for the windows platform thus substantially simplifying debugging efforts.

We need java code from you that generates this error.  That way, Arjen can
attempt to reproduce your error on the windows platform, and if the error
occurs for the postscript device, we should be able to reproduce it for
the Linux platform as well (and also help to debug it with valgrind).

Please make the requested example code as simple as possible, say ~10 plplot
calls or less (while still reproducing the error for your platform).

Alan
__________________________
Alan W. Irwin
email: ir...@be...
phone: 250-727-2902

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the Yorick front-end to PLplot (yplot.sf.net); the
Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
__________________________

Linux-powered Science
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