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* [Bug libgcj/18187] New: ava.util.WeakHashMap$WeakEntrySet.next() throws NoSuchElementException during GC
@ 2004-10-27 19:44 ovidr at users dot sourceforge dot net
2004-10-27 19:46 ` [Bug libgcj/18187] " pinskia at gcc dot gnu dot org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: ovidr at users dot sourceforge dot net @ 2004-10-27 19:44 UTC (permalink / raw)
To: gcc-bugs
During garbage collection, the WeakHashMap will throw a NoSuchElementException
when performing the methods:
.keySet().toArray()
.clear();
and maybe more. Sun's java does not.
Here is an example:
gcc version 4.0.0 20041014 (experimental)
gcj -main=WH WH.java
import java.util.*;
public class WH {
public static void main(String[] s) {
Thread t = new Thread() {
public void run() {
while (true) {
System.gc();
try {
Thread.sleep(1000);
} catch (Exception e) {
}
}
}
};
WeakHashMap w = new WeakHashMap();
for (int i = 0; i < 10000; i++)
w.put(new WH(), null);
t.setDaemon(true);
t.start();
try {
w.clear();
} catch (NoSuchElementException n) {
System.out.println("From .clear(): ");
n.printStackTrace();
}
for (int i = 0; i < 10000; i++)
w.put(new WH(), null);
try {
for (int i = 0; i < 1000; i++)
System.out.print("["+w.keySet().toArray().length+"]");
} catch (NoSuchElementException n) {
System.out.println("iFrom .toArray():");
n.printStackTrace();
}
}
}
--
Summary: ava.util.WeakHashMap$WeakEntrySet.next() throws
NoSuchElementException during GC
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: libgcj
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: ovidr at users dot sourceforge dot net
CC: gcc-bugs at gcc dot gnu dot org,java-prs at gcc dot gnu
dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18187
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libgcj/18187] ava.util.WeakHashMap$WeakEntrySet.next() throws NoSuchElementException during GC
2004-10-27 19:44 [Bug libgcj/18187] New: ava.util.WeakHashMap$WeakEntrySet.next() throws NoSuchElementException during GC ovidr at users dot sourceforge dot net
@ 2004-10-27 19:46 ` pinskia at gcc dot gnu dot org
2004-10-28 14:26 ` [Bug libgcj/18187] java.util.WeakHashMap$WeakEntrySet.next() " pinskia at gcc dot gnu dot org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-10-27 19:46 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-27 19:46 -------
*** This bug has been marked as a duplicate of 16998 ***
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |DUPLICATE
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18187
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libgcj/18187] java.util.WeakHashMap$WeakEntrySet.next() throws NoSuchElementException during GC
2004-10-27 19:44 [Bug libgcj/18187] New: ava.util.WeakHashMap$WeakEntrySet.next() throws NoSuchElementException during GC ovidr at users dot sourceforge dot net
2004-10-27 19:46 ` [Bug libgcj/18187] " pinskia at gcc dot gnu dot org
@ 2004-10-28 14:26 ` pinskia at gcc dot gnu dot org
2004-10-28 14:29 ` pinskia at gcc dot gnu dot org
2004-10-28 14:29 ` pinskia at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-10-28 14:26 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-28 14:25 -------
Lets reopen this one.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |UNCONFIRMED
Resolution|DUPLICATE |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18187
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libgcj/18187] java.util.WeakHashMap$WeakEntrySet.next() throws NoSuchElementException during GC
2004-10-27 19:44 [Bug libgcj/18187] New: ava.util.WeakHashMap$WeakEntrySet.next() throws NoSuchElementException during GC ovidr at users dot sourceforge dot net
` (2 preceding siblings ...)
2004-10-28 14:29 ` pinskia at gcc dot gnu dot org
@ 2004-10-28 14:29 ` pinskia at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-10-28 14:29 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-28 14:26 -------
*** Bug 16998 has been marked as a duplicate of this bug. ***
--
What |Removed |Added
----------------------------------------------------------------------------
CC| |mckinlay at redhat dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18187
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libgcj/18187] java.util.WeakHashMap$WeakEntrySet.next() throws NoSuchElementException during GC
2004-10-27 19:44 [Bug libgcj/18187] New: ava.util.WeakHashMap$WeakEntrySet.next() throws NoSuchElementException during GC ovidr at users dot sourceforge dot net
2004-10-27 19:46 ` [Bug libgcj/18187] " pinskia at gcc dot gnu dot org
2004-10-28 14:26 ` [Bug libgcj/18187] java.util.WeakHashMap$WeakEntrySet.next() " pinskia at gcc dot gnu dot org
@ 2004-10-28 14:29 ` pinskia at gcc dot gnu dot org
2004-10-28 14:29 ` pinskia at gcc dot gnu dot org
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-10-28 14:29 UTC (permalink / raw)
To: gcc-bugs
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-28 14:26 -------
Confirmed.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Last reconfirmed|0000-00-00 00:00:00 |2004-10-28 14:26:40
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18187
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2004-10-28 14:26 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2004-10-27 19:44 [Bug libgcj/18187] New: ava.util.WeakHashMap$WeakEntrySet.next() throws NoSuchElementException during GC ovidr at users dot sourceforge dot net
2004-10-27 19:46 ` [Bug libgcj/18187] " pinskia at gcc dot gnu dot org
2004-10-28 14:26 ` [Bug libgcj/18187] java.util.WeakHashMap$WeakEntrySet.next() " pinskia at gcc dot gnu dot org
2004-10-28 14:29 ` pinskia at gcc dot gnu dot org
2004-10-28 14:29 ` pinskia at gcc dot gnu dot org
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