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Posted to commits@harmony.apache.org by "Maxim Makarov (JIRA)" <ji...@apache.org> on 2006/10/13 09:49:37 UTC
[jira] Created: (HARMONY-1854) [drlvm][unit] WeakReference has not
been garbage collected using JET
[drlvm][unit] WeakReference has not been garbage collected using JET
---------------------------------------------------------------------
Key: HARMONY-1854
URL: http://issues.apache.org/jira/browse/HARMONY-1854
Project: Harmony
Issue Type: Bug
Components: DRLVM
Reporter: Maxim Makarov
Problem details:
WeakReference has not been garbage collected using JET
Code for reproducing:
import java.lang.ref.WeakReference;
public class Test extends junit.framework.TestCase {
public void testTest() {
try {
Object pos = new Object();
WeakReference wr = new WeakReference(pos);
for (int i = 0; i < 5; i++) {
System.gc();
}
System.out.println(wr.get());
assertNull("Position object hasn't been garbage collected", wr.get());
}catch(Exception e){
}
}
}
Output on RI:
----------------
Note: Test.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
On RI
.null
Time: 0.203
OK (1 test)
On Harmony:
---------------
Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
java version "1.5.0"
pre-alpha : not complete or compatible
svn = r454528, (Oct 12 2006), Windows/ia32/msvc 1310, release build
http://incubator.apache.org/harmony
.java.lang.Object@2061ca2c
F
Time: 0.031
There was 1 failure:
1) testTest(Test)junit.framework.AssertionFailedError: Position object hasn't
been garbage collected
at Test.testTest(Test.java:36)
at java.lang.reflect.VMReflection.invokeMethod(Native Method)
FAILURES!!!
Tests run: 1, Failures: 1, Errors: 0
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[jira] Commented: (HARMONY-1854) [drlvm][unit] WeakReference has
not been garbage collected using JET
Posted by "Maxim Makarov (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-1854?page=comments#action_12441979 ]
Maxim Makarov commented on HARMONY-1854:
----------------------------------------
I agree with Mikhail, therefore
unit test javax.swing.text.GapContent_SerializeTest contains the unnecessary assertion.
I suggest to remove this check. (plz, see patch)
> [drlvm][unit] WeakReference has not been garbage collected using JET
> ---------------------------------------------------------------------
>
> Key: HARMONY-1854
> URL: http://issues.apache.org/jira/browse/HARMONY-1854
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Maxim Makarov
>
> Problem details:
> WeakReference has not been garbage collected using JET
>
> Code for reproducing:
> import java.lang.ref.WeakReference;
> public class Test extends junit.framework.TestCase {
> public void testTest() {
> try {
> Object pos = new Object();
> WeakReference wr = new WeakReference(pos);
> for (int i = 0; i < 5; i++) {
> System.gc();
> }
> System.out.println(wr.get());
> assertNull("Position object hasn't been garbage collected", wr.get());
> }catch(Exception e){
> }
> }
> }
> Output on RI:
> ----------------
> Note: Test.java uses unchecked or unsafe operations.
> Note: Recompile with -Xlint:unchecked for details.
> On RI
> .null
> Time: 0.203
> OK (1 test)
> On Harmony:
> ---------------
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r454528, (Oct 12 2006), Windows/ia32/msvc 1310, release build
> http://incubator.apache.org/harmony
> .java.lang.Object@2061ca2c
> F
> Time: 0.031
> There was 1 failure:
> 1) testTest(Test)junit.framework.AssertionFailedError: Position object hasn't
> been garbage collected
> at Test.testTest(Test.java:36)
> at java.lang.reflect.VMReflection.invokeMethod(Native Method)
> FAILURES!!!
> Tests run: 1, Failures: 1, Errors: 0
--
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[jira] Closed: (HARMONY-1854) [drlvm][unit] WeakReference has not
been garbage collected using JET
Posted by "Geir Magnusson Jr (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-1854?page=all ]
Geir Magnusson Jr closed HARMONY-1854.
--------------------------------------
Resolution: Fixed
Please re-file this as a classlibrary issue. I was going to change it to classlib, but it's too baffling.
> [drlvm][unit] WeakReference has not been garbage collected using JET
> ---------------------------------------------------------------------
>
> Key: HARMONY-1854
> URL: http://issues.apache.org/jira/browse/HARMONY-1854
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Maxim Makarov
> Attachments: patch.txt
>
>
> Problem details:
> WeakReference has not been garbage collected using JET
>
> Code for reproducing:
> import java.lang.ref.WeakReference;
> public class Test extends junit.framework.TestCase {
> public void testTest() {
> try {
> Object pos = new Object();
> WeakReference wr = new WeakReference(pos);
> for (int i = 0; i < 5; i++) {
> System.gc();
> }
> System.out.println(wr.get());
> assertNull("Position object hasn't been garbage collected", wr.get());
> }catch(Exception e){
> }
> }
> }
> Output on RI:
> ----------------
> Note: Test.java uses unchecked or unsafe operations.
> Note: Recompile with -Xlint:unchecked for details.
> On RI
> .null
> Time: 0.203
> OK (1 test)
> On Harmony:
> ---------------
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r454528, (Oct 12 2006), Windows/ia32/msvc 1310, release build
> http://incubator.apache.org/harmony
> .java.lang.Object@2061ca2c
> F
> Time: 0.031
> There was 1 failure:
> 1) testTest(Test)junit.framework.AssertionFailedError: Position object hasn't
> been garbage collected
> at Test.testTest(Test.java:36)
> at java.lang.reflect.VMReflection.invokeMethod(Native Method)
> FAILURES!!!
> Tests run: 1, Failures: 1, Errors: 0
--
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[jira] Commented: (HARMONY-1854) [drlvm][unit] WeakReference has
not been garbage collected using JET
Posted by "Mikhail Fursov (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-1854?page=comments#action_12441953 ]
Mikhail Fursov commented on HARMONY-1854:
-----------------------------------------
I think that test is not correct.
There are 2 reasons:
1) I tried this version of test and it passed on BEA but fails on SUN (both v1.5)
import java.lang.ref.*;
public class Test {
public static void main(String[] args) {
Object pos = new Object();
WeakReference wr = new WeakReference(pos);
for (int i = 0; i < 5; i++) {
System.gc();
}
System.out.println("Position object: "+ wr.get());
}
}
On SUN it reports: Position object: java.lang.Object@182f0db
2) You can't predict if object is live of dead in JIT from the Java code.
> [drlvm][unit] WeakReference has not been garbage collected using JET
> ---------------------------------------------------------------------
>
> Key: HARMONY-1854
> URL: http://issues.apache.org/jira/browse/HARMONY-1854
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Maxim Makarov
>
> Problem details:
> WeakReference has not been garbage collected using JET
>
> Code for reproducing:
> import java.lang.ref.WeakReference;
> public class Test extends junit.framework.TestCase {
> public void testTest() {
> try {
> Object pos = new Object();
> WeakReference wr = new WeakReference(pos);
> for (int i = 0; i < 5; i++) {
> System.gc();
> }
> System.out.println(wr.get());
> assertNull("Position object hasn't been garbage collected", wr.get());
> }catch(Exception e){
> }
> }
> }
> Output on RI:
> ----------------
> Note: Test.java uses unchecked or unsafe operations.
> Note: Recompile with -Xlint:unchecked for details.
> On RI
> .null
> Time: 0.203
> OK (1 test)
> On Harmony:
> ---------------
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r454528, (Oct 12 2006), Windows/ia32/msvc 1310, release build
> http://incubator.apache.org/harmony
> .java.lang.Object@2061ca2c
> F
> Time: 0.031
> There was 1 failure:
> 1) testTest(Test)junit.framework.AssertionFailedError: Position object hasn't
> been garbage collected
> at Test.testTest(Test.java:36)
> at java.lang.reflect.VMReflection.invokeMethod(Native Method)
> FAILURES!!!
> Tests run: 1, Failures: 1, Errors: 0
--
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[jira] Updated: (HARMONY-1854) [drlvm][unit] WeakReference has not
been garbage collected using JET
Posted by "Maxim Makarov (JIRA)" <ji...@apache.org>.
[ http://issues.apache.org/jira/browse/HARMONY-1854?page=all ]
Maxim Makarov updated HARMONY-1854:
-----------------------------------
Attachment: patch.txt
> [drlvm][unit] WeakReference has not been garbage collected using JET
> ---------------------------------------------------------------------
>
> Key: HARMONY-1854
> URL: http://issues.apache.org/jira/browse/HARMONY-1854
> Project: Harmony
> Issue Type: Bug
> Components: DRLVM
> Reporter: Maxim Makarov
> Attachments: patch.txt
>
>
> Problem details:
> WeakReference has not been garbage collected using JET
>
> Code for reproducing:
> import java.lang.ref.WeakReference;
> public class Test extends junit.framework.TestCase {
> public void testTest() {
> try {
> Object pos = new Object();
> WeakReference wr = new WeakReference(pos);
> for (int i = 0; i < 5; i++) {
> System.gc();
> }
> System.out.println(wr.get());
> assertNull("Position object hasn't been garbage collected", wr.get());
> }catch(Exception e){
> }
> }
> }
> Output on RI:
> ----------------
> Note: Test.java uses unchecked or unsafe operations.
> Note: Recompile with -Xlint:unchecked for details.
> On RI
> .null
> Time: 0.203
> OK (1 test)
> On Harmony:
> ---------------
> Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors, as applicable.
> java version "1.5.0"
> pre-alpha : not complete or compatible
> svn = r454528, (Oct 12 2006), Windows/ia32/msvc 1310, release build
> http://incubator.apache.org/harmony
> .java.lang.Object@2061ca2c
> F
> Time: 0.031
> There was 1 failure:
> 1) testTest(Test)junit.framework.AssertionFailedError: Position object hasn't
> been garbage collected
> at Test.testTest(Test.java:36)
> at java.lang.reflect.VMReflection.invokeMethod(Native Method)
> FAILURES!!!
> Tests run: 1, Failures: 1, Errors: 0
--
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