[kaffe] Bug [CVS version]: Calling non-implemented method in abstract class

2003-03-28 Thread Benja Fallenstein 
Hi all,

The following code:

--- snip ---
public class Bug {
interface Interface {
void foo();
}
static abstract class Abstract implements Interface {
public void bug() { foo(); }
}
static class Impl extends Abstract {
public void foo() {}
}
public static void main(String[] args) {
new Impl().bug();
}
}
--- snip ---
gives me the following error:

[EMAIL PROTECTED]:~/ff/fenfire$ /usr/local/kaffe/bin/kaffe -cp build Bug
java.lang.NoSuchMethodError: Bug$Abstract.foo()V
at Bug$Abstract.bug(source file unknown:line unknown, pc 0x81ff788)
at Bug.main(source file unknown:line unknown, pc 0x8220661)
My Kaffe version (compiled from CVS, on Debian / x86):

Engine: Just-in-time v3   Version: 1.1.x-cvs   Java Version: 1.1

Apparently, Kaffe doesn't like when an abstract class calls a method 
from an interface the abstract class implements, if the abstract class 
does not implement that method itself.

Thanks,
- Benja
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Re: [kaffe] Bug [CVS version]: Calling non-implemented method in abstract class

2003-03-28 Thread Timothy Stack 
 Hi all,

hi,

 The following code:
 
 --- snip ---
 
 gives me the following error:
 
 [EMAIL PROTECTED]:~/ff/fenfire$ /usr/local/kaffe/bin/kaffe -cp build Bug
 java.lang.NoSuchMethodError: Bug$Abstract.foo()V
  at Bug$Abstract.bug(source file unknown:line unknown, pc 0x81ff788)
  at Bug.main(source file unknown:line unknown, pc 0x8220661)
 
 My Kaffe version (compiled from CVS, on Debian / x86):
 
  Engine: Just-in-time v3   Version: 1.1.x-cvs   Java Version: 1.1
 
 Apparently, Kaffe doesn't like when an abstract class calls a method 
 from an interface the abstract class implements, if the abstract class 
 does not implement that method itself.

Yeah, I ran into this a little while ago and fixed it in the JanosVM.  Its 
actually because of a change in jikes, which is legal, but not handled 
correctly in Kaffe.  I'll see about porting over the JanosVM fix in a bit.

 Thanks,
 - Benja

thanks,

tim stack

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