[Webtest] java.util.ConcurrentModificationException

Marc Guillemot Marc Guillemot <mguillemot@yahoo.fr>
Thu, 16 Nov 2006 09:45:40 +0100


Now fixed in htmlunit's SVN. Thanks for the perfect simple example to 
reproduce the problem.

Marc.

Pascal Lagasse wrote:
> Allo,
> 
> I tried successfully Canoo Webtest with various Server/Web sites.
> 
> I was able to test various Web Applications on Tomcat.
> 
> However, when testing a Web Application based on Jetspeed 1.6, I received
> the following Exception:
> 	Unexpected exception caught:
> java.util.ConcurrentModificationException
> 
> Here is the content of result.xml
> 
> <?xml version="1.0" encoding="UTF-8"?>
> <summary Implementation-Title="Canoo Webtest"
> Implementation-Version="R_1393">
>     <testresult endtime="Tue Nov 14 13:01:26 CET 2006"
> location="C:\ant\vru.xml:8: "
>         starttime="Tue Nov 14 13:01:25 CET 2006" successful="no"
> testspecname="testVRU">
>         <config>
>             <parameter name="protocol" value="http"/>
>             <parameter name="summary" value="yes"/>
>             <parameter name="saveresponse" value="yes"/>
>             <parameter name="timeout" value="5000"/>
>             <parameter name="haltonerror" value="yes"/>
>             <parameter name="port" value="8080"/>
>             <parameter name="resultfile" value="results.xml"/>
>             <parameter name="showhtmlparseroutput" value="yes"/>
>             <parameter name="resultpath" value="C:\ant\webtest-results"/>
>             <parameter name="host" value="localhost"/>
>             <parameter name="haltonfailure" value="yes"/>
>             <parameter name="basepath" value="VRU"/>
>             <parameter name="saveprefix" value="response"/>
>         </config>
>         <results>
>             <step>
>                 <parameter name="description" value="get"/>
>                 <parameter name="method" value="GET"/>
>                 <parameter name="taskName" value="invoke"/>
>                 <parameter name="url"
> value="http://localhost:8080/VRU/portal"/>
>                 <result>
>                     <failed duration="1253"/>
>                 </result>
>                 <htmlparser>
>                     <error col="45" line="62"
> url="http://localhost:8080/VRU/portal">Missing attribute name.</error>
>                 </htmlparser>
>             </step>
>             <error
> exception="com.canoo.webtest.engine.StepExecutionException"
> message="Unexpected exception caught:
> java.util.ConcurrentModificationException"><![CDATA[com.canoo.webtest.engine
> .StepExecutionException: Unexpected exception caught:
> java.util.ConcurrentModificationException, Step: InvokePage at
> C:\ant\vru.xml:31:  with (description="get", method="GET",
> taskName="invoke", url="http://localhost:8080/VRU/portal")         at
> com.canoo.webtest.steps.Step.handleUnexpectedException(Step.java:463)
> at
> com.canoo.webtest.steps.AbstractBrowserAction.handleUnexpectedException(Abst
> ractBrowserAction.java:120)         at
> com.canoo.webtest.steps.request.TargetHelper.protectedGoto(TargetHelper.java
> :114)         at
> com.canoo.webtest.steps.request.AbstractTargetAction.gotoTarget(AbstractTarg
> etAction.java:106)         at
> com.canoo.webtest.steps.request.AbstractTargetAction.doExecute(AbstractTarge
> tAction.java:78)         at
> com.canoo.webtest.steps.Step.execute(Step.java:132)         at
> org.apache.tools.ant.Task.perform(Task.java:364)         at
> com.canoo.webtest.ant.TestStepSequence.executeSteps(TestStepSequence.java:58
> )         at
> com.canoo.webtest.ant.TestStepSequence.doExecute(TestStepSequence.java:39)
> at com.canoo.webtest.steps.Step.execute(Step.java:132)         at
> org.apache.tools.ant.Task.perform(Task.java:364)         at
> com.canoo.webtest.ant.WebtestTask.execute(WebtestTask.java:155)         at
> org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)
> at org.apache.tools.ant.Task.perform(Task.java:364)         at
> org.apache.tools.ant.Target.execute(Target.java:341)         at
> org.apache.tools.ant.Target.performTasks(Target.java:369)         at
> org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
> at org.apache.tools.ant.Project.executeTarget(Project.java:1185)         at
> org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.j
> ava:40)         at
> org.apache.tools.ant.Project.executeTargets(Project.java:1068)         at
> org.apache.tools.ant.Main.runBuild(Main.java:668)         at
> org.apache.tools.ant.Main.startAnt(Main.java:187)         at
> org.apache.tools.ant.launch.Launcher.run(Launcher.java:246)         at
> org.apache.tools.ant.launch.Launcher.main(Launcher.java:67) Caused by:
> java.util.ConcurrentModificationException         at
> java.util.AbstractList$Itr.checkForComodification(AbstractList.java:449)
> at java.util.AbstractList$Itr.next(AbstractList.java:420)         at
> com.gargoylesoftware.htmlunit.html.HtmlPage.executeOnLoadHandlersIfNeeded(Ht
> mlPage.java:962)         at
> com.gargoylesoftware.htmlunit.html.HtmlPage.initialize(HtmlPage.java:145)
> at
> com.gargoylesoftware.htmlunit.WebClient.loadWebResponseInto(WebClient.java:4
> 40)         at
> com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:335)
> at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:389)
> at
> com.canoo.webtest.steps.request.TargetHelper.getResponse(TargetHelper.java:6
> 9)         at
> com.canoo.webtest.steps.request.AbstractTargetAction.getResponse(AbstractTar
> getAction.java:68)         at
> com.canoo.webtest.steps.request.InvokePage.findTarget(InvokePage.java:134)
> at
> com.canoo.webtest.steps.request.AbstractTargetAction$1.call(AbstractTargetAc
> tion.java:108)         at
> com.canoo.webtest.steps.request.TargetHelper.protectedGoto(TargetHelper.java
> :88)         ... 21 more ]]></error>
>         </results>
>     </testresult>
> </summary>
> 
> 
> Can someone help me? 
> 
> Thank you very much,
>  
> 
> Pascal Lagassé
> Projektentwicklung, Druckvorstufe
> Kösel GmbH & Co. KG - Über 400 Jahre Bücher mit System
> Am Buchweg 1
> 87452 Altusried-Krugzell
> http://www.koeselbuch.de 
> 
> 
>  
> 
> 
> 
> 
> 
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