Bug#223737: marked as done (libgcj4: regression - NullPointerException detection broken)
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and subject line #223737: libgcj4: regression - NullPointerException detection broken
has caused the attached Bug report to be marked as done.
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From: Cesar Eduardo Barros <cesarb@nitnet.com.br>
To: Debian Bug Tracking System <submit@bugs.debian.org>
Subject: libgcj4: regression - NullPointerException detection broken
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Package: libgcj4
Version: 1:3.3.2-4
Severity: normal
The fix for http://bugs.debian.org/206377 seems to have regressed.
Compile and run the following with a 2.6.0-test11 kernel:
-----cut here-----
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.io.OutputStream;
public class testcase {
public static void main(String[] args) {
System.out.println("1");
foo();
System.out.println("2");
foo();
System.out.println("3");
}
public static void foo() {
try {
bar(null);
} catch (NullPointerException ex) {
}
}
public static void bar(OutputStream outputStream) {
try {
ObjectOutputStream out = new ObjectOutputStream(outputStream);
} catch (IOException ex) {
}
}
}
-----cut here-----
The expected output is:
1
2
3
The broken output is:
1
2
Segmentation fault
This is causing a segmentation fault here when clicking the "next"
button on iRATE.
-- System Information:
Debian Release: testing/unstable
Architecture: i386
Kernel: Linux flower 2.6.0-test11-flower-reiserfsxattr #1 Sat Nov 29 19:43:53 BRST 2003 i686
Locale: LANG=C, LC_CTYPE=en_US.UTF-8
Versions of packages libgcj4 depends on:
ii libc6 2.3.2.ds1-10 GNU C Library: Shared libraries an
ii libgcc1 1:3.3.2-4 GCC support library
ii libgcj-common 1:3.3.2-4 Java runtime library (common files
ii libstdc++5 1:3.3.2-4 The GNU Standard C++ Library v3
ii xlibs 4.2.1-12.1 X Window System client libraries
ii zlib1g 1:1.1.4-16 compression library - runtime
-- no debconf information
---------------------------------------
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for 223737-done@bugs.debian.org; Thu, 11 Dec 2003 23:07:12 -0200
Date: Thu, 11 Dec 2003 23:07:11 -0200
To: 223737-done@bugs.debian.org
Subject: Re: #223737: libgcj4: regression - NullPointerException detection broken
Message-ID: <20031212010711.GC10835@flower.home.cesarb.net>
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From: Cesar Eduardo Barros <cesarb@nitnet.com.br>
Delivered-To: 223737-done@bugs.debian.org
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After a quick investigation, found the problem -- it was unblocking the
wrong signal (unblocking FPE when receiving a SEGV). The bug has been
fixed at least three times on the CVS (how many branches does gcc have?)
and unstable's version (3.3.3-0pre0) does not have the bug (probably got
the fix from upstream CVS).
Since it works in unstable (and if I'm right and it got the fix from the
upstream CVS, it's really been fixed), this bug report was bogus; sorry.
--
Cesar Eduardo Barros
cesarb@nitnet.com.br
cesarb@dcc.ufrj.br
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