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java/1252: methods inheirited from base class are not resolved to interface
- To: java-gnats at sourceware dot cygnus dot com
- Subject: java/1252: methods inheirited from base class are not resolved to interface
- From: fegray at uiuc dot edu
- Date: 22 May 2000 03:35:51 -0000
- Reply-To: fegray at uiuc dot edu
>Number: 1252
>Category: java
>Synopsis: methods inheirited from base class are not resolved to interface
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: apbianco
>State: closed
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Wed Dec 20 12:18:18 PST 2000
>Closed-Date: Fri Jun 23 21:14:30 PDT 2000
>Last-Modified: Fri Jun 23 21:15:59 PDT 2000
>Originator: Fred Gray (fegray@uiuc.edu)
>Release: current CVS
>Organization:
>Environment:
Debian GNU/Linux potato x86
>Description:
(The example below probably states this more clearly.)
If a class:
- inheirits methods from its superclass, and
- implements an interface which its superclass does not implement, and
- the inheirited methods ought to be part of the interface because their names and signatures match those declared in the interface,
the inheirited methods are nevertheless not matched up to the interface.
>How-To-Repeat:
Copy the following three files into a directory and
attempt to compile with "gcj -c A.java":
// A.java
public class A extends B implements I
{
public static void main(String args[])
{
A x = new A();
x.m();
}
}
// B.java
public class B
{
public void m()
{
}
}
// I.java
public interface I
{
public void m();
}
You will get the following error message:
A.java: In class `A':
A.java: In method `main(java.lang.String[])':
A.java:6: Can't find method `m()' in type `A'. Candidates are:
`m()' in `I'
`m()' in `B'.
x.m();
Compiling the associated .class files works fine.
>Fix:
>Release-Note:
It turns out that I already checked in a fix for PR #234
when I updated the compiler yesterday:
http://sourceware.cygnus.com/ml/java-discuss/2000-06/msg00051.html
How about sticking to this one and closing the PR?
>Audit-Trail:
Formerly PR gcj/234
From: Tom Tromey <tromey@cygnus.com>
To: fegray@uiuc.edu
Cc: java-gnats@sourceware.cygnus.com
Subject: Re: gcj/234: methods inheirited from base class are not resolved to interface
Date: Sun, 21 May 2000 22:10:44 -0700 (PDT)
I'm checking this test case in. I've also written a compiler patch.
If Alex ok's it, I'll tell you.
Tom
From: tromey@sourceware.cygnus.com
To: java-gnats@sourceware.cygnus.com
Cc:
Subject: gcj/234
Date: 22 May 2000 05:14:38 -0000
CVSROOT: /cvs/java
Module name: libgcj
Changes by: tromey@sourceware.cygnus.com 00/05/21 22:14:38
Modified files:
libjava/testsuite: ChangeLog
Added files:
libjava/testsuite/libjava.compile: PR234.java
Log message:
* libjava.compile/PR234.java: New file. For PR gcj/234.
Patches:
http://gcc.gnu.org/cgi-bin/gcc/libjava/testsuite/ChangeLog.diff?cvsroot=java&r1=1.94&r2=1.95
http://gcc.gnu.org/cgi-bin/gcc/libjava/testsuite/libjava.compile/PR234.java.diff?cvsroot=java&r1=NONE&r2=1.1
State-Changed-From-To: open->feedback
State-Changed-By: bryce
State-Changed-When: Thu Jun 8 22:56:46 2000
State-Changed-Why:
I posted a patch for this:
http://gcc.gnu.org/ml/gcc-patches/2000-06/msg00266.html
From: bryce@albatross.co.nz
To: apbianco@cygnus.com, fegray@uiuc.edu, java-gnats@sourceware.cygnus.com
Cc:
Subject: Re: gcj/234
Date: 9 Jun 2000 05:56:46 -0000
Synopsis: methods inheirited from base class are not resolved to interface
State-Changed-From-To: open->feedback
State-Changed-By: bryce
State-Changed-When: Thu Jun 8 22:56:46 2000
State-Changed-Why:
I posted a patch for this:
http://gcc.gnu.org/ml/gcc-patches/2000-06/msg00266.html
http://sourceware.cygnus.com/cgi-bin/gnatsweb.pl?cmd=view&pr=234&database=java
State-Changed-From-To: feedback->closed
State-Changed-By: bryce
State-Changed-When: Fri Jun 23 21:14:30 2000
State-Changed-Why:
Alex's fix is in cvs and it looks fine.
From: bryce@albatross.co.nz
To: apbianco@cygnus.com, fegray@uiuc.edu, java-gnats@sourceware.cygnus.com
Cc:
Subject: Re: gcj/234
Date: 24 Jun 2000 04:14:30 -0000
Synopsis: methods inheirited from base class are not resolved to interface
State-Changed-From-To: feedback->closed
State-Changed-By: bryce
State-Changed-When: Fri Jun 23 21:14:30 2000
State-Changed-Why:
Alex's fix is in cvs and it looks fine.
http://sourceware.cygnus.com/cgi-bin/gnatsweb.pl?cmd=view&pr=234&database=java
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