This is the mail archive of the
java@gcc.gnu.org
mailing list for the Java project.
Re: Build failure with the 0.98 merge
- From: "Andrew John Hughes" <gnu_andrew at member dot fsf dot org>
- To: "Tom Tromey" <tromey at redhat dot com>
- Cc: java <java at gcc dot gnu dot org>
- Date: Tue, 2 Sep 2008 21:55:02 +0100
- Subject: Re: Build failure with the 0.98 merge
- References: <17c6771e0808201352p69c0264dm5afd1dabec872992@mail.gmail.com> <m3pro2jm63.fsf@fleche.redhat.com>
2008/8/21 Tom Tromey <tromey@redhat.com>:
>>>>>> "Andrew" == Andrew John Hughes <gnu_andrew@member.fsf.org> writes:
>
> Andrew> /home/andrew/projects/classpath/gcj/sources/gcc/libjava/java/lang/StringBuffer.h:97:
> Andrew> error: 'java::lang::AbstractStringBuffer*
> Andrew> java::lang::StringBuffer::StringBuffer$append(jchar)' cannot be
> Andrew> overloaded
> Andrew> /home/andrew/projects/classpath/gcj/sources/gcc/libjava/java/lang/StringBuffer.h:38:
>
> Andrew> Is there an issue with gcj and the use of covariant return
> Andrew> types from 1.5?
>
> There shouldn't be. javah has special code in it to rename bridge
> method targets in this situation.
>
> Looking at the header I see:
>
> ::java::lang::StringBuffer * StringBuffer$append(jchar);
> ::java::lang::Appendable * append(jchar);
> ::java::lang::AbstractStringBuffer * StringBuffer$append(jchar);
>
> And looking at AbstractStringBuffer.h:
>
> virtual ::java::lang::AbstractStringBuffer * AbstractStringBuffer$append(jchar);
> virtual ::java::lang::Appendable * append(jchar);
>
>
> So I think javah's bug is that it does not understand how bridge
> methods might be inherited, and so it does not know rename targets
> according to the class in the hierarchy where they first appeared.
> IOW, that 3rd append method in StringBuffer.h should be named
> AbstractStringBuffer$append.
>
> Tom
>
Changing that manually fixed the issue. I'll look at patching gjavah
to do the right thing.
Continuing, I get more strange errors:
/home/andrew/projects/classpath/gcj/sources/gcc/libjava/gnu/gcj/util/natDebug.cc:
In static member function 'static java::lang::Object*
gnu::gcj::util::Debug::getField(java::lang::Object*,
java::lang::reflect::Field*)':
/home/andrew/projects/classpath/gcj/sources/gcc/libjava/gnu/gcj/util/natDebug.cc:73:
error: expected type-specifier
/home/andrew/projects/classpath/gcj/sources/gcc/libjava/gnu/gcj/util/natDebug.cc:73:
error: cannot convert 'int*' to 'java::lang::Object*' in return
/home/andrew/projects/classpath/gcj/sources/gcc/libjava/gnu/gcj/util/natDebug.cc:73:
error: expected ';'
/home/andrew/projects/classpath/gcj/sources/gcc/libjava/gnu/gcj/util/natDebug.cc:73:
error: 'Double' is not a member of 'gnu::java::lang'
natDebug.cc hasn't changed; any idea what could be wrong here?
Thanks,
--
Andrew :-)
Support Free Java!
Contribute to GNU Classpath and the OpenJDK
http://www.gnu.org/software/classpath
http://openjdk.java.net
PGP Key: 94EFD9D8 (http://subkeys.pgp.net)
Fingerprint: F8EF F1EA 401E 2E60 15FA 7927 142C 2591 94EF D9D8