Re: David Aliaga's question about java crashes in his program

[Paul Johnson]

Hm.  I don't think I can help you without knowing more about the
precise error or what operating system you have and what kind of Swarm 
you have.  If you
can run the sdg provided examples like jheatbugs, then you should 
compare to see where your code differs from theirs.

I recall a
problem with the way some java swarm programs were designed and
I think I avoided that in the JelFarol code. (that is in 
ftp://ftp.swarm.org/apps/java/contrib).  If you have ptplot
java installed, you run JelFarol. Even if you don't run it,
you can look at the main method to see some special magic that might 
correct the problem in your code.

David Aliaga wrote:
> Hello
>
> it is being a long time I havent write to this list
> and use Swarm. May be that is whay I am a little out
> of practice.
>
> I wrote a very simple program, similar to the
> simpleObserverBug in the tutorial. It has only ONE bug
> though. It compiles fine and actually it runs well. MY
> PROBLEM is when I quit the program.
>
> If I press "start" and then "stop" and then "quit"
> everything is fine. But if I press "stop" more than
> once then I got an awful error message, like that this
> program try to do an illegal operation.
>
> Has any body found this in his experience? Any idea?
>
> David
>
> P.S. first I though it was because I create an object
> in the globalZone instead of the "self" in ModelSwarm.
> I though "oh then I am leaving an object which is not
> destroyed after I leave" but I correct this and still
> got the problem.
>  
>
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--
Paul E. Johnson                       email: address@hidden
Dept. of Political Science            http://lark.cc.ku.edu/~pauljohn
University of Kansas                  Office: (785) 864-9086
Lawrence, Kansas 66045                FAX: (785) 864-5700


                 ==================================
  Swarm-Support is for discussion of the technical details of the day
  to day usage of Swarm.  For list administration needs (esp.
  [un]subscribing), please send a message to <address@hidden>
  with "help" in the body of the message.