GCJ and C++ (calling Java from C++)
Andrew Haley
aph@redhat.com
Mon Dec 5 19:40:00 GMT 2005
Lothar Werzinger writes:
> On Monday 05 December 2005 11:19, Andrew Haley wrote:
> > Lothar Werzinger writes:
> > > On Monday 05 December 2005 03:39, Andrew Haley wrote:
> > > > Lothar Werzinger writes:
> > > > >From what I learned reading about CNI calling methods on interfaces
> > > > >requires a special dispatch table called otable.
> > > >
> > > > I don't think so. As far as I'm aware the otable is only ever
> > > > involved when a file has been compiled with -findirect dispatch. CNI
> > > > doesn't use indirect dispatch. Without indirect dispatch, we'd expect
> > > > the otable to be null.
> > >
> > > The jar and the Java file are compiled with -findirect-dispatch, so I
> > > think having a null otable is bad. You should be able to see that in the
> > > build.xml in the project I sent you last time.
> > >
> > > > Which line? Does the failure occur in the call to get_name?
> > >
> > > As said in previous postings it fails either in
> > >
> > > JvInitClass(LibraryTestClass);
> > >
> > > or in
> > >
> > > String * p_name = p_library->getName();
> >
> > But which? Put a breakpoint on the first line, then step over it.
>
> Maybe I did not make myself clear. If JvInitClass(LibraryTestClass); is
> present it fails there. If I comment out the JvInitClass(LibraryTestClass);
> it fails in p_library->getName();
The value of p_library is?
Andrew.
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