Re: AWT and Jikes RVM

[Vasanth Venkatachalam]

Its classpath 0.10. I was told that only classpath 0.10
works with Jikes RVM. Does classpath 0.12 also work??

Where is the option --enable-portable-native-sync supposed to be set?

On Thu, 9 Dec 2004, Michael Koch wrote:

> Am Donnerstag, 9. Dezember 2004 08:20 schrieb Vasanth Venkatachalam:
> > The problem is that for a simple AWT program that just
> > displays a frame, the method GetJavaVM( ) gets called somewhere
> > along the way. This in turn calls the native method CreateJavaVM(
> > ), which raises an unimplementedNativeMethod exception. I have
> > shown a snippet of the error at the bottom of this message.
> >
> > I looked around in the code for CreateJavaVM and found
> > confusing inconsistencies. Its declared in VM_JNIFunctions.java and
> > implemented in a file (syswrap.C) which isn't even compiled into
> > the VM default. There seems to be a typo in the implementation
> > (non-matching function prototype), and when I forced this file to
> > be recompiled, I wasn't able to run any programs at all.
> >
> > I don't see how someone could possibly get AWT working without
> > addressing this CreateJavaVM problem. I want to know how they got
> > past this error.
> >
> > Here again is a snippet of the error message:
> >
> >  Lcom/ibm/JikesRVM/VM_DynamicLinker; unimplementedNativeMethod()V
> > at line 41
> >
> > Lcom/ibm/JikesRVM/jni/VM_JNIFunctions;
> > GetJavaVM(Lcom/ibm/JikesRVM/jni/VM_JNIEnvironment;Lcom/ibm/JikesRVM
> >/VM_Address;) I
> > at line 5395
> >    <native frame>
> >    <native frame>
> >    Lgnu/java/awt/peer/gtk/GtkMainThread; gtkInit(I)V at line 0
> >    Lgnu/java/awt/peer/gtk/GtkMainThread; run()V at line 102
> >    Ljava/lang/Thread; run()V at line 270
> >    Lcom/ibm/JikesRVM/VM_Thread; startoff()V at line 779
> > JikesRVM: exit 124
> 
> Is this with GNU classpath 0.10 or 0.12 ? Are you sure it can find the 
> native libraries of GNU classpath ? Maybe you need to set 
> LD_LIBRARY_PATH.
> 
> Please play with the --enable-portable-native-sync configure option. I 
> know Steven added it while hacking on JikesRVM support.
> 
> 
> Michael
> -- 
> Homepage: http://www.worldforge.org/
>