trouble with Kaffe + ICQJava under Linux

[Nathan Lutchansky]

Roger,

It looks like ICQ is trying to use classes specific to Sun's Java
implementation.  Including the classes.zip file in your CLASSPATH won't
help because the classes are dependent upon native code in the Sun JVM.
Judging by the name of the class (sun.audio.AudioPlayer), you may be able
to work around this if there is a way to disable the audio functions of
the ICQ client.  Alternatively, you may be able to dummy up a
sun.audio.AudioPlayer class that contains stub functions, but I don't know
how feasible this is.  -Nathan

On Wed, 15 Jul 1998, Roger Espel Llima wrote:

> I've tried to run ICQJava with Kaffe under Linux, and it doesn't work.
> The setup is: Linux Redhat 5.1, Kaffe 1.0.b1 (RPM for RedHat dowloaded
> from the transvirtual.com site), and classes.zip from JDK 1.1.6v1.2.
> 
> without classes.zip, the result is:
> 
> $ echo $CLASSPATH
> /home/espel/java/ICQJava/ICQ.jar:/home/espel/java/ICQJava:/usr/local/share/kaffe/Klasses.jar:/usr/local/share/kaffe/pizza.jar
> $ kaffe Mirabilis.ICQ.NetAware.CNetAwareApp -path ~espel/java/ICQJava 
> java.lang.ClassNotFoundException: sun/audio/AudioPlayer
>         at Mirabilis/ICQ/NetAware/CNetAwareApp.main(line unknown, pc 0x846c9df)
> 
> and with classes.zip:
> 
> $ vared CLASSPATH 
> /home/espel/java/ICQJava/ICQ.jar:/home/espel/java/ICQJava:/usr/local/share/kaffe/Klasses.jar:/usr/local/share/kaffe/pizza.jar:/home/espel/java/classes.zip
> $ kaffe Mirabilis.ICQ.NetAware.CNetAwareApp -path ~espel/java/ICQJava 
> java.lang.NullPointerException
>         at java/awt/MediaTrackerEntry.imageUpdate(286)
>         at java/awt/Image.stateChange(527)
>         at java/awt/Image.createFromFile(382)
>         at java/awt/Image$Initializer.startProduction(259)
>         at java/awt/Image$Initializer.run(191)
>         at java/lang/Thread.run(122)
> 
> A strace of the kaffe ends with this (before printing the "null pointer
> exception" error message):
> 
> sigaction(SIGVTALRM, {0x40036310, [], 0}, NULL) = 0
> sigprocmask(SIG_UNBLOCK, [VTALRM], NULL) = 0
> sigreturn()                             = ? (mask now [])
> stat("/home/espel/java/ICQJava//Images/anim.gif", {st_mode=0, st_size=0, ...}) = 0
> --- SIGSEGV (Segmentation fault) ---
> 
> 
> I have no trouble at all running a "Hello World" app on the same setup.
> 
> ICQJava is a Java ICQ client, downloaded from www.mirabilis.com
> 
> -- 
> Roger Espel Llima, espel at iAgora.com
>