Re: ObjC-java error

[Stephen C. Upton]

Thanks again.  I compiled under javac in a MSDOS window, which sounds like 
it's incorrect given your "make" comment below.  Given that comment, I 
presume I need to compile under a Swarm window to get the bindings correct 
with cgywin, etc.. Actually, I just recompiled using make under a Swarm 
terminal window, and get

address@hidden//e/Swarm-working/jheatbugs-2.1] $ jdkswarm StartHeatbugs -b
*** event raised for error: InvalidArgument
*** function: lispIn(), file: /src/Swarm/swarm/src/defobj/defobj.m, line: 306
> type `HeatbugBatchSwarm' not found*** execution terminating due to error
/src/Swarm/swarm/src/defobj/Symbol.m:173 -[Error(c) _raiseEvent:]
    0       0 [sig] g:\jdk1.2.2\bin\java.exe 1016 stackdump: Dumping stack 
trace
 to java.exe.stackdump

One of the reasons I was trying to use the jdk was to move to jdk1.3, since 
it has the hotspot compiler embedded, and I was interested in some 
performance comparisons.  I don't believe the Kaffe guys have gone that far 
yet, but I realize you also want to keep everything open source.

Thanks for all your help.  I'm going to stop messing with Heatbugs and work 
on my own problem .  Maybe the problem (I'm sure it's something simple, 
anyway) will come up in another context and I can address it then.

thanx
upton


At 12:23 PM 3/28/2000 -0800, you wrote:
> >>>>> "SU" == Stephen C Upton <address@hidden> writes:
>
> SU> javaswarm works.  But does this mean I'm tied to
> SU> the Kaffe VM (there shouldn't be any differences between these
> SU> VM's, at least on the pure java side?), or does it mean there's
> SU> something specifically happening in Heatbugs, given it's heritage?
>
> I don't see why you get the error you do with Sun JDK 1.2.2 (I don't).
> Did you compile in the terminal with "make"?
>
> I'll go so far as advocate using Kaffe instead of Sun's runtime for
> batch runs.  Besides not having the stdio problems I mentioned, and
> having comparable performance, it is also easier to investigate
> crashes when something goes wrong, as the source code to Kaffe is
> freely redistributable.
>
> SU> I'm planning on moving to java3D for some viz work and would like
> SU> to know if there are going to be any potential hangups.
>
> I can't think of any offhand.  The main thing to be careful about
> is how Java threads ask Swarm (i.e. the Objective C library) to do things.
> When a Java GUI widget wants to sent a message, you should store it in
> a Java data structure, and then schedule events in Swarm to consume them
> (i.e. let Swarm do things on its own terms).
>
>                   ==================================
>    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.

*** * **** * ***** ********* ** ****** ***** *** ***** ********
Stephen C. Upton  TSA-5, MS F602  Z119895                       
(505) 667-9435 Voice                    (505) 665-2017 Fax                      
address@hidden
********* ******* ********* *** ** *** ******** **** ****** ** 

                 ==================================
  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.