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* [Bug java/32862] New: bug in EnumMap implementation
@ 2007-07-23 8:02 debian-gcc at lists dot debian dot org
2007-07-23 16:11 ` [Bug java/32862] " tromey at gcc dot gnu dot org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: debian-gcc at lists dot debian dot org @ 2007-07-23 8:02 UTC (permalink / raw)
To: gcc-bugs
[forwarded from http://bugs.debian.org/423160]
seen with trunk 20070720
The gij implementation of EnumMap class contains a flaw: it returns
strange java.lang.Object classes for missing elements. The error can be
demonstrated with this program:
=== Cut ===
import java.util.*;
public class Test {
enum TestEnum {
FIRST, SECOND
}
public static void main(String[] args) {
Map<TestEnum, String> map = new EnumMap<TestEnum,
String>(TestEnum.class);
map.put(TestEnum.FIRST, "first");
System.out.println(map);
System.out.println(map.containsKey(TestEnum.SECOND));
System.out.println(map.get(TestEnum.SECOND));
}
}
$ gcj -C Test.java
tmp $ gij Test
{FIRST=first}
false
Exception in thread "main" java.lang.ClassCastException:
java.lang.Object cannot be cast to java.lang.String
at Test.main(Test.java:13)
tmp $ java Test
{FIRST=first}
false
null
=== Cut ===
As you can see, Sun Java (the last call) returns correct null, while
GNU libgcj returns bogus java.lang.Object.
--
Summary: bug in EnumMap implementation
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: java
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: debian-gcc at lists dot debian dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32862
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug java/32862] bug in EnumMap implementation
2007-07-23 8:02 [Bug java/32862] New: bug in EnumMap implementation debian-gcc at lists dot debian dot org
@ 2007-07-23 16:11 ` tromey at gcc dot gnu dot org
2007-07-24 15:27 ` cvs-commit at developer dot classpath dot org
2007-08-07 17:38 ` tromey at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: tromey at gcc dot gnu dot org @ 2007-07-23 16:11 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from tromey at gcc dot gnu dot org 2007-07-23 16:11 -------
I have a fix I'm testing.
--
tromey at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |tromey at gcc dot gnu dot
|dot org |org
Status|UNCONFIRMED |ASSIGNED
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2007-07-23 16:11:28
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32862
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug java/32862] bug in EnumMap implementation
2007-07-23 8:02 [Bug java/32862] New: bug in EnumMap implementation debian-gcc at lists dot debian dot org
2007-07-23 16:11 ` [Bug java/32862] " tromey at gcc dot gnu dot org
@ 2007-07-24 15:27 ` cvs-commit at developer dot classpath dot org
2007-08-07 17:38 ` tromey at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: cvs-commit at developer dot classpath dot org @ 2007-07-24 15:27 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from cvs-commit at developer dot classpath dot org 2007-07-24 15:27 -------
Subject: Bug 32862
CVSROOT: /cvsroot/classpath
Module name: classpath
Changes by: Tom Tromey <tromey> 07/07/24 15:26:36
Modified files:
. : ChangeLog
java/util : EnumMap.java
Log message:
PR java/32862:
* java/util/EnumMap.java (get): Special case emptySlot.
(clone): Rewrote.
CVSWeb URLs:
http://cvs.savannah.gnu.org/viewcvs/classpath/ChangeLog?cvsroot=classpath&r1=1.9354&r2=1.9355
http://cvs.savannah.gnu.org/viewcvs/classpath/java/util/EnumMap.java?cvsroot=classpath&r1=1.4&r2=1.5
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32862
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug java/32862] bug in EnumMap implementation
2007-07-23 8:02 [Bug java/32862] New: bug in EnumMap implementation debian-gcc at lists dot debian dot org
2007-07-23 16:11 ` [Bug java/32862] " tromey at gcc dot gnu dot org
2007-07-24 15:27 ` cvs-commit at developer dot classpath dot org
@ 2007-08-07 17:38 ` tromey at gcc dot gnu dot org
2 siblings, 0 replies; 4+ messages in thread
From: tromey at gcc dot gnu dot org @ 2007-08-07 17:38 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from tromey at gcc dot gnu dot org 2007-08-07 17:38 -------
Fixed via classpath import.
--
tromey at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
Target Milestone|--- |4.3.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32862
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2007-08-07 17:38 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2007-07-23 8:02 [Bug java/32862] New: bug in EnumMap implementation debian-gcc at lists dot debian dot org
2007-07-23 16:11 ` [Bug java/32862] " tromey at gcc dot gnu dot org
2007-07-24 15:27 ` cvs-commit at developer dot classpath dot org
2007-08-07 17:38 ` tromey at gcc dot gnu dot org
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