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Subject: RE: Coloc Binding Test Error
Date: Thu, 7 Jun 2007 10:59:38 -0400
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From: "Jiang, Ning \(Willem\)" <Ning.Jiang@iona.com>
To: <cxf-dev@incubator.apache.org>
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FYI, I updated the easy mock class extension from 2.2.1 to 2.2.2 a =
couple days ago.
And I can't get the Concurrent Modification Exception for a while :)

Willem.=20


-----Original Message-----
From: Polar Humenn [mailto:phumenn@iona.com]
Sent: Thu 6/7/2007 22:30
To: cxf-dev@incubator.apache.org
Subject: Re: Coloc Binding Test Error
=20
Yep, I agree, but that would be pretty deterministic and reproducible.

I really didn't look into the code, so I don't know. Just thought
I'd put it out there and see who ever created the test would notice=20
something
probably bad with it concurrently speaking ;-)

Cheers,
-Polar

Daniel Kulp wrote:
> On Thursday 07 June 2007 07:52, Paibir, Ajay wrote:
>  =20
>> Hi Polar,
>>
>> I have not been able to reproduce this error on my windows box even =
on
>> repeated runs. Further this unit test itself doesn't have multiple
>> threads(unless easymock does something in its runtime) to get a
>> ConcurrentModification ex.
>>    =20
>
> Just FYI:  you don't need threads to get a=20
> ConcurrentModificationException with the collections.   Something =
simple=20
> like:
>
> List<String> lst =3D new ArrayList<String>();
> lst.add("1");
> Iterator<String> it =3D lst.iterator();
> lst.add("2");
> String s =3D it.next();
>
> will result in the ConcurrentModificationException.
>
> Dan
>
>
>
>  =20
>> Let me see if changing the unit test in any way based on the EasyMock
>> code helps.
>>
>> Ajay
>>
>>    =20
>>> -----Original Message-----
>>> From: Polar Humenn [mailto:phumenn@iona.com]
>>> Sent: 07 June 2007 05:10
>>> To: cxf-dev@incubator.apache.org
>>> Subject: Coloc Binding Test Error
>>>
>>> I get the following error intermittently, probably based on
>>> system load.
>>> It's a concurrent modification error on some List. Looks like
>>> it has to do with Easymock, some misconception about lists, I think.
>>> But in anycase, we should probably avoid this.
>>>
>>> Cheers,
>>> -Polar
>>> -------------------------------------------------------
>>> Running org.apache.cxf.binding.coloc.ColocMessageObserverTest
>>> Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time
>>> elapsed: 0.875 sec Running
>>> org.apache.cxf.binding.coloc.ColocUtilTest Tests run: 6, Failures:
>>> 0, Errors: 0, Skipped: 0, Time
>>> elapsed: 0.059 sec Running
>>> org.apache.cxf.binding.coloc.ColocOutInterceptorTest
>>> Tests run: 8, Failures: 0, Errors: 1, Skipped: 0, Time
>>> elapsed: 0.248 sec <<< FAILURE!
>>> testColocOutIsColocated(org.apache.cxf.binding.coloc.ColocOutI
>>> nterceptorTest)
>>> Time elapsed: 0.019 sec  <<< ERROR!
>>> java.util.ConcurrentModificationException
>>>         at
>>> java.util.AbstractList$Itr.checkForComodification(AbstractList
>>> .java:449)
>>>         at java.util.AbstractList$Itr.next(AbstractList.java:420)
>>>         at
>>> org.easymock.internal.UnorderedBehavior.addExpected(UnorderedB
>>> ehavior.java:22)
>>>         at
>>> org.easymock.internal.MocksBehavior.addExpected(MocksBehavior.java:4
>>> 1) at
>>> org.easymock.internal.RecordState.times(RecordState.java:185)
>>>         at
>>> org.easymock.internal.RecordState.closeMethod(RecordState.java:229)
>>>         at
>>> org.easymock.internal.RecordState.invoke(RecordState.java:62)
>>>         at
>>> org.easymock.internal.MockInvocationHandler.invoke(MockInvocat
>>> ionHandler.java:24)
>>>         at
>>> org.easymock.internal.ObjectMethodsFilter.invoke(ObjectMethods
>>> Filter.java:45)
>>>         at
>>> org.easymock.classextension.internal.ClassProxyFactory$1.inter
>>> cept(ClassProxyFactory.java:69)
>>>         at
>>> org.apache.cxf.service.model.BindingInfo$$EnhancerByCGLIB$$be3
>>> 758c2.getOperation(<generated>)
>>>         at
>>> org.apache.cxf.binding.coloc.ColocOutInterceptorTest.verifyIsC
>>> olocatedWithDifferentOperation(ColocOutInterceptorTest.java:366)
>>>         at
>>> org.apache.cxf.binding.coloc.ColocOutInterceptorTest.testColoc
>>> OutIsColocated(ColocOutInterceptorTest.java:149)
>>>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
>>> Method) at
>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccess
>>> orImpl.java:39)
>>>         at
>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMeth
>>> odAccessorImpl.java:25)
>>>         at java.lang.reflect.Method.invoke(Method.java:585)
>>>         at
>>> org.junit.internal.runners.TestMethodRunner.executeMethodBody(
>>> TestMethodRunner.java:99)
>>>         at
>>> org.junit.internal.runners.TestMethodRunner.runUnprotected(Tes
>>> tMethodRunner.java:81)
>>>         at
>>> org.junit.internal.runners.BeforeAndAfterRunner.runProtected(B
>>> eforeAndAfterRunner.java:34)
>>>         at
>>> org.junit.internal.runners.TestMethodRunner.runMethod(TestMeth
>>> odRunner.java:75)
>>>         at
>>> org.junit.internal.runners.TestMethodRunner.run(TestMethodRunn
>>> er.java:45)
>>>         at
>>> org.junit.internal.runners.TestClassMethodsRunner.invokeTestMe
>>> thod(TestClassMethodsRunner.java:66)
>>>         at
>>> org.junit.internal.runners.TestClassMethodsRunner.run(TestClas
>>> sMethodsRunner.java:35)
>>>         at
>>> org.junit.internal.runners.TestClassRunner$1.runUnprotected(Te
>>> stClassRunner.java:42)
>>>         at
>>> org.junit.internal.runners.BeforeAndAfterRunner.runProtected(B
>>> eforeAndAfterRunner.java:34)
>>>         at
>>> org.junit.internal.runners.TestClassRunner.run(TestClassRunner
>>> .java:52)
>>>         at
>>> org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4T
>>> estSet.java:62)
>>>         at
>>> org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.exe
>>> cuteTestSet(AbstractDirectoryTestSuite.java:138)
>>>         at
>>> org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.exe
>>> cute(AbstractDirectoryTestSuite.java:125)
>>>         at org.apache.maven.surefire.Surefire.run(Surefire.java:132)
>>>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
>>> Method) at
>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccess
>>> orImpl.java:39)
>>>         at
>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMeth
>>> odAccessorImpl.java:25)
>>>         at java.lang.reflect.Method.invoke(Method.java:585)
>>>         at
>>> org.apache.maven.surefire.booter.SurefireBooter.runSuitesInPro
>>> cess(SurefireBooter.java:290)
>>>         at
>>> org.apache.maven.surefire.booter.SurefireBooter.main(SurefireB
>>> ooter.java:818)
>>>      =20
>> ----------------------------
>> IONA Technologies PLC (registered in Ireland)
>> Registered Number: 171387
>> Registered Address: The IONA Building, Shelbourne Road, Dublin 4,
>> Ireland
>>    =20
>
>  =20


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