Re: using Smack API with GNU Classpath

[Jan Pannecoeck <jpa@xxxxxxxxxxxx>]

Hi,

Thanks for the reply! I'll try that later today to see if I could 
cross-compile the JamVM 1.5.2 with GNU Classpath 0.98! Since those are 
both the most recent versions I hope this solves my problem!!

Thanks!
Jan

Robert Lougher wrote:
> P.S.  Unfortunately, to upgrade to 1.5.2, you'll also need to upgrade
> GNU Classpath to 0.98...
>
> Rob.
>
> 2009/2/16 Robert Lougher <rob.lougher@xxxxxxxxx>:
>   
> > Hi Jan,
> >
> > 2009/2/16 Jan Pannecoeck <jpa@xxxxxxxxxxxx>:
> >     
> > > Hello Robert,
> > >
> > > I'm using JamVM 1.5.0 at the ARM and JamVM 1.4.5 at my desktop pc. Is the
> > > problem you described also in those versions, or only in the 1.5.1 version?
> > >
> > >       
> > Yes, the problem is in both 1.4.5 and 1.5.0 (JSR 166 support was added
> > in 1.4.5, with an inefficient park/unpark implementation -- this has
> > finally been replaced in 1.5.2).
> >
> > Rob.
> >
> >     
> > > Thanks for your reply!
> > > Jan
> > >
> > > Robert Lougher wrote:
> > >       
> > > > Hi Jan,
> > > >
> > > > 2009/2/16 Jan Pannecoeck <jpa@xxxxxxxxxxxx>:
> > > >
> > > >         
> > > > > Hello everyone,
> > > > >
> > > > > I'm a Java Developer and I'm working mainly with embedded devices. Now
> > > > > I'm
> > > > > running JamVM with GNU Classpath on an ARM processor. This is all working
> > > > > fine, and I didn't had any big problems until now... I'll try to explain
> > > > > my
> > > > > problem as good as possible, but if someone needs some more information,
> > > > > you
> > > > > can contact me ofcourse!
> > > > >
> > > > > So, I'm using the Smack API to get an XMPPConnection with my XMPPServer.
> > > > > This is working, but my CPU is running at 100%! I do have the same
> > > > > problem
> > > > > (CPU at 100%) when I try to run this java program on my desktop computer
> > > > > with JamVM and GNU Classpath. When I run it using Sun's JVM, the CPU load
> > > > > is
> > > > > around 0-1 %.
> > > > >
> > > > > I don't have any clue what this problem could be causing, I'm trying to
> > > > > find
> > > > > out what part of the Smack API is causing the problems, but at the moment
> > > > > I
> > > > > log-in to the server, the CPU jumps to 100%... Could this be caused by
> > > > > some
> > > > > encryption that's been used by Smack? Since the Smack API needs a
> > > > > KeyStoreType, I'm using the gkr type since that's the one supported by
> > > > > GNU
> > > > > Classpath...
> > > > >
> > > > > If anyone had this kind of problems before with GNU Classpath, or could
> > > > > solve my problem, this would be great!! Any help would be welcome since
> > > > > I'm
> > > > > quite stuck with this...
> > > > >
> > > > >
> > > > >           
> > > > What version of JamVM are you using?  It's possible some code you're
> > > > running is using the new concurrency API (JSR 166).  In JamVM 1.5.1,
> > > > park/unpark was incomplete and could use 100% CPU.  This is fixed in
> > > > 1.5.2.
> > > >
> > > > Rob.
> > > >
> > > >
> > > >         
> > > > > Kind regards,
> > > > > Jan
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >           
> > > >         
>
>