[Scilab-users] Scilab 6.0 + starting a new jvm + evstr('1+1; ') => crash

[Samuel Gougeon]

Hello Michael,

Again, it is hard or even impossible to help or/and debug without having 
any true complete (and if possible minimal) way to run an actual code 
and reproduce the issue.

Le 03/03/2017 à 14:40, Michael Benguigui a écrit :
> Hi all,
> As a Scilab user, i am facing difficulties during the Scilab 
> 6 adaptation of my project. I did my best to isolate the pb. This code 
> works with Scilab 5.5. At some point of my code, I have:
>
> >pair = jinvoke(deployer,'deployOrLookup');
> >evstr('1+1');// crash!
> >// or
> >// deff('[x]=myplus(y,z)','x=y+z') // crash!
>
> Important points:
> - The common point of evstr and deff is it calls the scilab compiler.
> - deployOrLookup() calls a java method using jinvoke(), which creates 
> a java Process (Process process = pb.start(); ) that executes another 
> java class
> (cmd like java -Djava.security.policy=xxx -Dlog4j.configuration=xx 
> -Drmi.port=xxx myClass).
> - If the jvm already exists, deployOrLookup() does not create it 
> again, but just registers it..

Either you can provide this code, or you provide an equivalent public 
one with which you get the same issue, in a way we can copy/paste it in 
the console with all the required context (so lines of codes without any 
leading prompts -->).
Otherwise, nothing prevents thinking that the issue is possibly in the 
private code or in the private context instead of in Scilab itself.

By the way, if your prompt was really ">" instead of "-->", you were not 
at the top level, and something else could be wrong out of jinvoke, 
evstr or deff)

For my part, i do not get any crash running
jimport java.lang.System;
jimport java.awt.Color;
jimport java.lang.String;
// Non-static methods
jinvoke("Hello World !!", "length");
evstr('1+1');// crash!
deff('[x]=myplus(y,z)','x=y+z')

as coming from the first example of the jinvoke() help page.

Regards
Samuel

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